13,902 results on '"pollution prevention"'
Search Results
2. Environmental liabilities, borrowing costs, and pollution prevention activities: The nationwide impact of the Apex Oil ruling
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Chen, Jianqiang, Hsieh, Pei-Fang, Hsu, Po-Hsuan, and Levine, Ross
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- 2025
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3. Identification and Characterization of a Protease Producing Bacillus cereus Strain From Tannery Waste for Efficient Dehairing of Goat Skin.
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Uddin, Md. Ekhlas, Sheikh, Md. Ramjan, Asaduzzaman, Md., Ahmed, Sohel, Kundu, Sukalyan Kumar, Sina, Abu Ali Ibn, and Formanowicz, Dorota
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POLLUTION prevention , *IN vitro studies , *BACILLUS (Bacteria) , *INDUSTRIAL wastes , *RESEARCH funding , *MICROBIAL sensitivity tests , *GOATS , *POLYMERASE chain reaction , *ANALYTICAL biochemistry , *SKIN , *BIOINFORMATICS , *PROTEOLYTIC enzymes , *MOLECULAR structure , *MICROSCOPY , *STAINS & staining (Microscopy) , *COLLECTION & preservation of biological specimens , *SEQUENCE analysis - Abstract
Environmental pollution has been a significant concern for the last few years. The leather industry significantly contributes to the economy but is one of Bangladesh's most prominent polluting industries. It is also responsible for several severe diseases such as cancer, lung diseases, and heart diseases of leather workers because they use bleaching agents and chemicals, and these have numerous adverse effects on human health. The study was aimed at isolating, identifying, and molecularly characterizing bacteria that produce protease enzymes that are highly capable of dehairing goat hide. Several attempts were made to isolate and identify protease‐producing bacterial strains from different soil samples of tannery wastes. Initially, a total of four isolates were selected from tannery soil. After the different phenotypic and morphological characterization, one isolate (BS2) showed Gram‐positive, rod‐shaped, and spore‐forming characteristics and could produce novel hair‐degrading protease enzymes. The growth profile and protease activity of the bacteria at 37°C were observed; a basal level of extracellular protease increased with time. The enzyme's proteolytic activity was measured, and the unit of enzyme activity of the enzyme sample was 18.1. The ExPASy server (ProtParam) tool was used to estimate the physicochemical characteristics of the proteins and found molecular weight (MW) (7375.94 Da), aliphatic index (71.56), instability index (II, 80.63), Grand Average of Hydropathy (GRAVY) (−0.231), and isoelectric point (11.41). The protein–protein interactions (PPI) networks were generated using the Search Tool for the Retrieval of Interacting Genes (STRING) database and Cytoscape software. The PSIPRED v.4.0 and SAVES v.6.0 programs were used to determine the secondary and three‐dimensional assembly of the selected protein. They found alpha helix (16, 25.00%), extended strand (6, 9.38%), beta‐turn (5, 7.81%), and random coil (37, 57.81%). DNA isolation and purification were carried out, and the purity ratio was ~2.17 at 260 and 280 nm. Polymerase chain reaction (PCR) for amplifying the 16S rRNA gene was conducted, and the isolate was authentically recognized as Bacillus cereus (BS2) based on morphological, biochemical, and molecular analyses. The quantitative assessment has shown that 40 mL of culture centrifugation could dehair 2 × 1 cm of goat leather sample in 9 h. This potential bacterial strain can be used in the leather industry as an ecofriendly alternative to chemical dehairing, which can reduce environmental pollution and the risk of severe diseases among leather industry workers. [ABSTRACT FROM AUTHOR]
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- 2025
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4. Cardiovascular disease burden linked to particulate matter pollution in Latin America and the Caribbean: Insights from GBD 2021 and socio-demographic index analysis.
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Mendoza-Cano, Oliver, Vázquez-Yañez, Andrés, Trujillo, Xóchitl, Huerta, Miguel, Ríos-Silva, Mónica, Lugo-Radillo, Agustin, Bricio-Barrios, Jaime Alberto, Cuevas-Arellano, Herguin Benjamin, Uribe-Ramos, Juan Manuel, Solano-Barajas, Ramón, García-Solórzano, Luis A., Camacho-delaCruz, Arlette A., Ríos-Bracamontes, Eder Fernando, Ortega-Ramírez, Ana Daniela, and Murillo-Zamora, Efrén
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POLLUTION prevention , *CARDIOVASCULAR disease prevention , *CROSS-sectional method , *DATA analysis , *LIFE expectancy , *GLOBAL burden of disease , *DESCRIPTIVE statistics , *PUBLIC health administration , *STATISTICS , *ISCHEMIC stroke , *PARTICULATE matter , *CONFIDENCE intervals , *COMPARATIVE studies , *PEOPLE with disabilities , *REGRESSION analysis - Abstract
This study aimed to analyze the burden of cardiovascular disease (CVD) attributable to particulate matter (PM) pollution in Latin American and Caribbean (LAC) countries and territories, and its relationship with the Socio-Demographic Index (SDI). A cross-sectional analysis was conducted. The disability-adjusted life years (DALYs) and the SDI data were obtained from the Global Burden of Disease Study 2021. Spearman's regression coefficients (r h o) and 95 % confidence intervals (CI) were used to evaluate the relationship of interest. We computed a total of 22,231,164 disability-adjusted life years DALYs due to CVD in 2021, with an age-standardized rate of 3742 DALYs per 100,000 population. Ischemic heart disease and ischemic stroke were predominant. PM pollution was responsible for 2,974,358 DALYs (12.1 % of total CVD DALYs), varying widely across regions, with the highest attributable fractions observed in Haiti, Honduras, and Guatemala. A negative linear relationship (r h o = −0.73, 95 % CI -0.95 to −0.51) was observed between PM pollution-attributable CVD burden and SDI, indicating a higher burden in regions with lower SDI. Public health interventions targeting PM pollution could substantially mitigate the burden of CVD, particularly in vulnerable populations identified in this study. These findings underscore the critical importance of environmental policies and interventions aimed at reducing PM pollution, and underlying socio-economic disparities, to alleviate the health impact of CVD in LAC countries and territories. [ABSTRACT FROM AUTHOR]
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- 2025
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5. Social Psychological Perspectives on Political Polarization: Insights and Implications for Climate Change.
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Cole, Jennifer C., Gillis, Ash J., van der Linden, Sander, Cohen, Mark A., and Vandenbergh, Michael P.
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POLLUTION prevention , *SOCIAL psychology , *GROUP identity , *CLIMATE change , *SOCIAL norms , *ATTITUDE (Psychology) , *ETHICS , *SOCIAL values , *GOVERNMENT programs , *PRACTICAL politics , *POLITICAL participation , *GROUP process - Abstract
Political polarization is a barrier to enacting policy solutions to global issues. Social psychology has a rich history of studying polarization, and there is an important opportunity to define and refine its contributions to the present political realities. We do so in the context of one of the most pressing modern issues: climate change. We synthesize the literature on political polarization and its applications to climate change, and we propose lines of further research and intervention design. We focus on polarization in the United States, examining other countries when literature was available. The polarization literature emphasizes two types of mechanisms of political polarization: (1) individual-level psychological processes related to political ideology and (2) group-level psychological processes related to partisan identification. Interventions that address group-level processes can be more effective than those that address individual-level processes. Accordingly, we emphasize the promise of interventions leveraging superordinate identities, correcting misperceived norms, and having trusted leaders communicate about climate change. Behavioral interventions like these that are grounded in scientific research are one of our most promising tools to achieve the behavioral wedge that we need to address climate change and to make progress on other policy issues. [ABSTRACT FROM AUTHOR]
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- 2025
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6. Evaluating and modeling the efficacy of Stipagrostis plumosa for the phytoremediation of petroleum compounds in crude oil-contaminated soil.
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Nemati, Bahador, Akbari, Hossein, Dehghani, Rouhullah, Fallahizadeh, Saeid, Mostafaii, Gholamreza, and Baneshi, Mohammad Mehdi
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POLLUTION prevention , *PLANT metabolism , *SOIL testing , *BACTERIAL metabolism , *PETROLEUM , *HEAVY metals , *DECONTAMINATION (From gases, chemicals, etc.) , *RESEARCH funding , *CADMIUM , *GAS chromatography , *CHROMIUM , *NICKEL , *MASS spectrometry , *FLUORESCENCE spectroscopy , *LEAD - Abstract
This study focused on using Stipagrostis plumosa for phytoremediation to eliminate total petroleum hydrocarbons (TPHs) and heavy metals (HMs) like cadmium (Cd), chromium (Cr), lead (Pb), and nickel (Ni) from oil-contaminated soil. Conducted over six months at a field-scale without artificial pollutants, soil samples were analyzed using gas chromatography‒mass spectrometry (GC‒MS) for TPHs and inductively coupled plasma-optical emission spectroscopy (ICP‒OES) for HMs. Results after six months revealed that plots with plants had significantly higher average removal percentages for TPHs (61.45%), Cd (39.4%), Cr (46.1%), Pb (41.5%), and Ni (44.2%) compared to the control group (p <0.05). Increased microbial respiration and bacteria populations in planted plots indicated enhanced soil microbial growth. Kinetic rate models aligned well with the first-order kinetic rate model for all pollutants (R2 >0.9). Overall, the study demonstrates that S. plumosa can effectively reduce TPHs and HMs in oil-contaminated soil, making it a promising option for pollutant absorption. [ABSTRACT FROM AUTHOR]
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- 2025
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7. Federal Policy Platforms and Public Health: Reinforcing the Benefits of Air Pollution Control Devices at Power Plants in the United States.
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Buonocore, Jonathan J., Fisher, Jeremy, Prull, Daniel, Willis, Mary D., Arunachalam, Saravanan, Perera, Frederica, Kinney, Patrick, Sousa, Brian, and Levy, Jonathan I.
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AIR pollution prevention , *POLLUTION prevention , *AIR pollution control equipment , *SERIAL publications , *AIR pollution , *ECOLOGICAL impact , *GREENHOUSE effect , *HEALTH policy , *SULFUR compounds , *FEDERAL government , *ELECTRICITY , *DISEASES , *POWER plants , *PUBLIC health , *NITROGEN oxides , *GREENHOUSE gases - Abstract
The article discusses the proposed federal policy platforms that include substantial changes to environmental regulation at the U.S. Environmental Protection Agency (EPA). Topics include the authority given by the Clean Air Act (CAA) to the EPA to develop policies to reduce emissions of major air pollutants, health benefits of air pollution control devices, and role of the CAA in healthy decarbonization.
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- 2025
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8. The Birth of Green Chemistry: A Political History.
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Maxim, Laura
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SUSTAINABLE chemistry , *POLLUTION prevention , *HISTORY of chemistry , *ENVIRONMENTAL protection , *REGULATED industries - Abstract
Few authors have investigated the origins of green chemistry (GC). Most literature relies on a narrative of its birth at the US Environmental Protection Agency in the 1990s through the original work by Paul Anastas and John Warner and the successful networking and institutionalizing activities that followed. However, this perspective has two drawbacks: it fails to consider the Environmental Protection Agency's (EPA) political background (without which individual action would not have been possible), and it highlights a contradiction between the revolutionary theoretical message of the founders of GC and their strategy of promotion, which is uncritical of "brown" chemistry and excludes participation by civil society and the public. I argue that GC is not only the success of enthusiastic individuals who took advantage of existing political resources to promote a new vision of greening research and innovation but is also an expression of major political changes and a tool for managing chemical risks at the EPA in the 1990s. Using the concept of "design," I argue that GC is a tool illustrating the EPA's comanagement approach with the regulated industry. The paper sheds light on how authorities react to the difficulties of regulating chemical risks. [ABSTRACT FROM AUTHOR]
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- 2025
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9. The Study of the Knowledge, Attitude, and Practice about the Air Pollution among the Residents of Kolar Town of South India.
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V., Prashanth and Shenoy, Usha G.
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AIR pollution ,HAZARD mitigation ,ENVIRONMENTAL health ,POLLUTION prevention ,CELL phones - Abstract
Introduction: Air pollution is a major environmental health problem affecting everyone.Few studies have revealed the specific needs of the residents; hence the thought demand for residents to the knowledge of air pollution information was explored using a questionnaire. Aims and objective: To develop awareness and understanding of pollution hazards and their prevention among the Kolar population on air pollution by using a questionnaire. Materials and methods: A cross-sectional study was conducted among 120 subjects in Kolar town by Purposive sampling technique with a validated, standard questionnaire by interview method and collected was analysed by SPSS version 20. Results: Majority gained knowledge on air pollution from mobile phones and television, While a few said from the public and newspapers. Regarding attitude, 91% agreed that air pollution affected their health and the environment, with 116 (96.7%) 106 (88.3%) saying it from outdoor and indoor activities respectively. Statistically significant association was established between knowledge gained among educators with (P=0.004) and attitude toward outdoor air pollution with (P=0.001) and changes in behavioural patterns with (P=0.042). Conclusion: This work served as a starting point for a more timely and complete survey on air pollution and its relation to health and economic growth. [ABSTRACT FROM AUTHOR]
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- 2025
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10. Zero Liquid Discharge in the Dye Intermediate Industry with the Primary Treatment Method.
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Saiyad, Mamta, Shah, Nimish, Shettyan, Uchitesh, Modi, Heli, Joshipura, Milind, Dwivedi, Ankur, and Pillai, Shibu
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SEWAGE purification ,LIQUID waste ,DYE industry ,ENVIRONMENTAL compliance ,POLLUTION prevention - Abstract
The dye intermediate industry plays a pivotal role in the textile, paper, and chemical sectors, but it is often associated with significant water pollution owing to the release of complex and colored effluents. This paper explores the implementation of zero liquid discharge (ZLD) as a sustainable solution to address the environmental challenges posed by the dye intermediate industry. ZLD is a comprehensive wastewater management approach that aims to eliminate liquid waste discharge, while recovering valuable resources. The paper delves into the specific challenges faced by the dye intermediate industry, such as the presence of recalcitrant organic compounds and intense coloration in wastewater. It examines how ZLD systems, which typically without involving costly membrane processes, evaporation, crystallization, and chemical treatments, can effectively treat these complex effluents to achieve environmental compliance and resource conservation. Furthermore, the paper discusses the benefits of ZLD adoption in the dye intermediate sector. It has been shown that by making alterations to the primary treatment method, ZLD can be achieved. These include the prevention of water pollution, the preservation of water resources, and compliance with stringent environmental regulations. The economic and operational advantages of ZLD are also highlighted. [ABSTRACT FROM AUTHOR]
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- 2025
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11. Certifications and testing methods for biodegradable plastics.
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Lee, WooSeok, Kim, JaeHyeon, and Lee, Tai Gyu
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POLLUTION prevention , *MANUFACTURING processes , *STANDARDS , *TEST methods , *ORGANIZATIONAL research , *BIODEGRADABLE plastics - Abstract
This paper offers a comprehensive review of previous studies and articles on international standards and certification criteria for biodegradable plastics. It highlights key insights into the biodegradation environment and certification processes for these materials. As various countries and organizations intensify research efforts on biodegradable plastics, certification standards for biodegradability are evolving and expanding. This trend is expected to play a pivotal role in shaping international standards. Nonetheless, several challenges persist, including the absence of universally recognized testing methods, inconsistencies between real-world and laboratory biodegradation conditions, and a lack of clear definitions and standardized criteria. Above all, establishing international standards is critical to advancing biodegradable plastics as a viable alternative to conventional plastics. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Spatial variability and hotspot prediction of heavy metal pollution in soil-rice system: based on a new geostatistical method.
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Wu, Dun, Liu, Hai, Gao, Xia, Li, Bo, and Kataza Nyasha, Ndhlovu
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HEAVY metal toxicology , *HOT spots (Pollution) , *HEAVY metals , *POLLUTION prevention , *AGRICULTURAL development , *TEST methods , *SOIL pollution - Abstract
The goal of this research was to better understand the spatial characteristics and hot areas of heavy metal concentrations in the soil-rice system, which was critical for implementing heavy metal pollution prevention and control strategies. The amounts of heavy metals in soil-rice were determined using high-precision testing methods such as XRF, ICP-MS, and AFS based on the systematic collection of 285 pairs of soil-rice samples from Wanjiang Economic Zone, China. The Getis-Ord index, Kriging method, and geostatistical method were used to reveal the spatial distribution of heavy metal contamination hot spots in the soil-rice system. The results revealed that the average concentration of heavy metals in soil was Zn>Cr>Cu>Pb>Ni>As>Cd>Hg, whereas it was Zn>Cu>Ni>Cr>Cd>As>Pb>Hg in rice. The average concentrations of heavy metals in the soil were all well below the maximum allowable limit, except for Cd, which was slightly above the allowable limit. Only Cd and Ni concentrations in rice exceeded the maximum permitted limits. In soil, Cd, Hg, Pb, and Zn pollution hotspots were mostly found in the southeast, while Cr and Ni were mostly found in the northeast. An intriguing discovery was that there was a weak relationship between heavy metal concentrations in soil and rice and the spatial pattern of their distribution. The study's findings offer a scientific foundation for establishing a long-term agricultural development strategy for the soil-rice system in the Wanjiang Economic Zone. [ABSTRACT FROM AUTHOR]
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- 2024
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13. Research on the Impact Effects of the Thermal Power Industry and Other High-Haze-Pollution Industries on the Atmospheric Environment.
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Zhou, Yunkai, Zhou, Jingkun, and Li, Yating
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ENVIRONMENTAL quality , *INDUSTRIAL pollution , *AIR pollutants , *TECHNOLOGICAL innovations , *ENVIRONMENTAL regulations , *AIR pollution , *GREEN technology , *POLLUTION prevention - Abstract
As industrialization accelerates, China's industrial development pace has been rapidly increasing. However, this growth has been accompanied by an increase in high-pollution and high-emission industries, leading to the release of a significant amount of air pollutants and exacerbating haze pollution nationwide. This article utilizes the spatial dynamic Durbin model and panel threshold regression model to analyze the impact of the thermal power industry and other high-haze-pollution industries on atmospheric environmental quality. The results indicate a negative correlation between the thermal power industry and other high-haze pollution industries and atmospheric environmental quality. There is a spatial spillover effect of the thermal power industry and other high-haze-pollution industries on air pollution. Environmental regulations have a single-threshold characteristic in their impact on atmospheric quality in the thermal power industry and other high-haze-pollution industries, as does green technology innovation. Additionally, cumulative rainfall has a significant single-threshold effect on the atmospheric environmental quality in regions with the thermal power industry and other high-haze-pollution industries. The article suggests policies for severely polluted areas, including reducing high-haze-pollution enterprises, optimizing industrial structures rationally, strengthening regional cooperation, enhancing regional haze pollution prevention and control coordination mechanisms, increasing the intensity of environmental regulations, utilizing the threshold effect of environmental regulations, promoting green technological innovation and application in heavily polluted areas, and exploring options to improve air pollution through increased rainfall. These recommendations aim to provide reference points for China to further optimize its industrial structure and comprehensively manage haze pollution. [ABSTRACT FROM AUTHOR]
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- 2024
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14. The International Maritime Organization's Revised Greenhouse Gas Strategy: A Political Signal of Shipping's Regulatory Future.
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Friedman, Andrew
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GREENHOUSE gases , *GREENHOUSE gas mitigation , *MARITIME shipping , *POLLUTION prevention , *TREATIES - Abstract
The International Maritime Organization (IMO) 2023 Strategy on Reduction of GHG Emission from Ships offers few specifics from a legal perspective, but is an important political signal. IMO Member States have committed to adopt binding rules to incentivise greenhouse gas emission reductions in 2025 which will enter into force by 2027. Moreover, the Strategy calls for the elimination of shipping emissions by or around 2050 and sets checkpoints to track progress. IMO now faces key decisions to implement the Strategy, including how to structure a goal-based fuel standard, how to integrate an economic element (e.g., an emission levy) into its regulatory framework, its methods for assessing upstream emissions and effects of fuel production, and specific reduction pathways. These measures will likely be effectuated as amendments to Annex VI of the International Convention for the Prevention of Pollution from Ships, leveraging its existing compliance and enforcement tools, including port State controls. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Variations in Phytoplankton Blooms in the Yangtze River Estuary and Its Adjacent Waters Induced by Climate and Human Activities.
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Luo, Yan, Zhou, Ling, Wu, Rui, Dong, Jingjie, Chen, Xinchun, Zhu, Zhenjie, and Xu, Jiafeng
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OCEAN temperature ,MARINE pollution ,POLLUTION prevention ,SEASHORE ,REAL estate development - Abstract
The long-term characteristics of phytoplankton blooms and the relative importance of driving factors in the Yangtze River Estuary (YRE) and its adjacent waters remains unclear. This study explored the temporal and spatial patterns of blooms and their driving factors in the YRE and its adjacent waters using MODIS bloom data from 2003 to 2020. Bloom intensity varied along both longitudinal and latitudinal gradients, with very few blooms occurring near the shore and in the open sea. Temporally, blooms exhibited seasonal variations, peaking during the summer and being weakest during the winter. Sea surface temperature was the primary driving factor behind the seasonal variations in algal blooms. The implementation of controlling the pace of urban land development, returning farmland to forest, and initiating marine pollution prevention programs have contributed to a downward trend in the bloom intensity. Additionally, the operation of the Three Gorges Dam altered the Yangtze River's diluted water during the summer months, thereby reducing the bloom intensity. Conversely, the Taiwan Warm Current promoted an increase in the bloom intensity. Elucidation of the spatiotemporal patterns and the driving factors of blooms in the YRE and its adjacent waters provide crucial support for the prediction and management of algal blooms. [ABSTRACT FROM AUTHOR]
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- 2024
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16. Analysis of the Effects of Differently Shaped Embankments on the Density Current.
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Koue, Jinichi
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WASTE heat ,DENSITY currents ,EMERGENCY management ,POLLUTION prevention ,INDUSTRIAL wastes ,EMBANKMENTS - Abstract
Density currents, fluid flows driven by differences in density, play a crucial role in disaster prevention for water pollution and tsunami mitigation, particularly due to thermal releases from power plants. Understanding their dynamics is pivotal for effective mitigation strategies. While the influence of seabed and lake bottom topography on density currents is well-studied, research on how embankment shapes affect these currents has been limited. This study aimed to fill this gap by experimentally and numerically analyzing the flow dynamics of density currents using various embankment shapes in a controlled water tank environment. The findings revealed distinct variations in density perturbation across different embankment shapes. Specifically, density currents exhibited reduced head velocities in embankments shaped as right-angled triangles, rectangles, and L-shapes, in that sequential order. This research underscores the significance of embankment design in modifying density currents, offering valuable insights for optimizing disaster management strategies related to water pollution and tsunami hazards induced by thermal effluents from industrial sources. [ABSTRACT FROM AUTHOR]
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- 2024
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17. Long-Term or Short-Term? Prediction of Ship Detention Duration Based on Machine Learning.
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Deng, Qingyue and Wan, Zheng
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LETTERS of intent ,TANKERS ,POLLUTION prevention ,RANDOM forest algorithms ,DATA distribution - Abstract
The prevalence of ship deficiencies continues to be a significant issue. Data from the Tokyo Memorandum of Understanding reveals that ship detentions in 2023 surged by more than 80% compared with the previous year. The significant number of detained ships not only disrupts ships' daily operations but also strains port resources, leading to increased additional costs. In light of this issue, predicting the duration of ship detention becomes crucial, as accurate predictions can assist port managers in resource allocation and provide shipping companies with critical information for operational planning. This study is the first to predict ship detention duration, specifically distinguishing between long-term and short-term detained ships. Initially, key deficiency types influencing the ship detention duration were identified using an improved entropy weight–grey relational analysis. Subsequently, in consideration of the imbalance in data distribution between long-term and short-term detentions, a random forest model capable of handling imbalanced data was applied to classify these two types. The study found that fire safety, propulsion and auxiliary machinery, and pollution prevention are the three most critical deficiency types impacting detention duration; and the random forest model sampled and processed from the data level possessed the best model performance, achieving prediction accuracies of 0.71, 0.72, and 0.85 for bulk carriers, containers, and oil tankers, respectively. This research offers a comprehensive analysis of ship detention duration, making a significant contribution to both the theoretical understanding and practical applications in the maritime industry. Accurately predicting ship detention duration provides valuable insights for stakeholders, enabling them to anticipate potential detention scenarios and thus supporting shipping companies in effective fleet management while assisting port authorities in the optimal allocation of berth resources. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Evaluation of Heavy Metal Contamination in Black Soil at Sanjiang Plain: From Source Analysis to Health Risk Assessment.
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Gao, Zijie, Jiang, Jie, and Sun, Guoxin
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HEALTH risk assessment ,POLLUTION risk assessment ,BLACK cotton soil ,HEAVY metal toxicology ,HEAVY elements ,HEAVY metals ,POLLUTION prevention - Abstract
Heavy metals were discharged into the agricultural soil through coal mining, transportation, etc., posing a threat to human health through the food chain. In order to investigate the sources of heavy metals and potential risk to the population, we collected 298 surface soil samples in the black soil area of Sanjiang Plain in Heilongjiang province and tested the concentrations of seven heavy metals. Toxic element contamination in the soil was evaluated by combining the potential ecological risk index and environmental capacity, and pollution sources are identified through positive matrix factorization. The results indicate that the concentrations of Cd and As exceed background values by 1.74 and 1.51 times, respectively, and the ecological risk of Cd is significantly higher than those of other toxic elements. The comprehensive ecological risk level is a moderate comprehensive ecological risk level at 78.5% and a low comprehensive ecological risk level at 21.5%. The sources of heavy metal elements include pesticide spraying (36.5%), input fertilizer and transport activities (20.5%), and mining and metallurgy-related activities (43.1%). When linking the PMF to the Human Health Risk Assessment model, it was found that about 56% of the samples pose a carcinogenic risk to children. Knowledge of soil pollution can certainly help to understand the sources of toxic elements and the health risks to people in the black soil area and provide a scientific basis for the prevention of heavy metal pollution. [ABSTRACT FROM AUTHOR]
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- 2024
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19. Monitoring Dissolved Organic Carbon Concentration and Flux in the Qiantang Riverine System Using Sentinel-2 Satellite Images.
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Yan, Yujia, He, Xianqiang, Bai, Yan, Liu, Jinsong, Shanmugame, Palanisamy, Zhao, Yaqi, Zhang, Xuan, Wang, Zhihong, Zhang, Yifan, and Gong, Fang
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TIME series analysis , *MARINE pollution , *POLLUTION prevention , *REMOTE-sensing images , *DISTANCE education - Abstract
Real-time monitoring of riverine-dissolved organic carbon (DOC) and its controlling factors is critical for formulating strategies regarding the river basin and marginal seas pollution prevention and control. In this study, we established a linear regression formulation that relates the permanganate index (CODMn) to the DOC concentration based on in situ measurements collected on five field surveys in 2023–2024. This regression formulation was used on a large number of data collected from automatic monitoring stations in the Qiantang River area to construct a daily quasi-in situ database of DOC concentration. By combining the quasi-in situ DOC data and Sentinel-2 measurements, an enhanced algorithm for empirical DOC estimation was developed (R2 = 0.66) using the extreme gradient boosting (XGBoost) method and its spatial and temporal variations in the Qiantang River were analyzed from 2016 to 2023. Spatially, the main stream of the Qiantang River exhibited an overall decreasing and increasing trend influenced by population density, economic development, and pollutant discharge in the basin area, and the temporal distribution of DOC was controlled by meteorological conditions. The DOC contents had the highest in summer, primarily due to high rainfall and leaching. The inter-annual variation in DOC concentration was influenced by the total annual runoff volumes, with a minimum level of 2.24 mg L−1 in 2023 and a maximum level of 2.45 mg L−1 in 2019. The monthly DOC fluxes ranged from 6.3 to 13.8 × 104 t, with the highest values coinciding with the maximum river discharge volumes in June and July. The DOC levels in the Qiantang River remained relatively high in recent years (2016–2023). This study enables the concerned stakeholders and researchers to better understand carbon transportation and its dynamics in the Qiantang River and its coastal areas. [ABSTRACT FROM AUTHOR]
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- 2024
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20. Performance of strategies implemented as part of a management approach from an ecological standpoint.
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Kaviyarasu, K.
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BIODIVERSITY conservation ,AGRICULTURAL conservation ,ENVIRONMENTAL management ,POLLUTION prevention ,CLEAN energy - Abstract
It is the goal of this article to define and implement the strategic policies to avoid negative environmental impact by planning, implementing, monitoring, and controlling activities based on the environmental management. The forthcoming work does not involve experimental and characterization studies, and it does not even involve laboratory experiments. Environmental risks have been mitigated by a number of laws and regulations, including those that recognize, evaluate, and enforce environmental hazards. A sustainable policy is an innovative way of establishing policies and plans which are sustainable for the environment. This study provided metrics and indicators for measuring the environmental performance. As a result, the key priorities will be protecting the environment, growing the economy, and utilizing resources in the most effective manner without compromising the needs of the future. To ensure sustainable development, the environment and society will be managed to achieve their well-being because of implementing strategies. This report explores some of the practices and principles of sustainability that businesses, organizations, and individuals can employ to improve their sustainability. [ABSTRACT FROM AUTHOR]
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- 2024
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21. Environmental legislation analysis improvement approach of global marine plastic pollution from the perspective of holistic system view.
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Xu, Shuqing
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EUROPEAN Union law ,POLLUTION prevention ,MARINE resources conservation ,ENVIRONMENTAL justice ,MARINE ecology ,MARINE pollution - Abstract
Marine plastic pollution (MPP) has posed an unavoidable challenge to the conservation of marine ecosystems, escalating at an unprecedented rate. It extends beyond visible pollution, infiltrating the food chain and microcirculation, ultimately affecting the life and health of marine organisms. Of even greater concern is the fact that MPP has been found to penetrate human bloodstreams. The international community increasingly focuses on MPP, and has formulated a series of laws and regulations. This article analyses marine pollution prevention legislation within the context of international environmental resolutions and conventions, including those established by the United Nations, the European Union law and the domestic legislation of sovereign states. It is evident that the current legislation has played a pivotal role in the preventing MPP. However, global legislation on preventing MPP remains fragmented. The problems existing in the current legislation should be reviewed from the holistic systems perspective, and the integrity and systematicness of new plastics convention should be demonstrated. The proposed Marine Plastics Convention should emphasize environmental justice, protect the rights of vulnerable populations, lower the threshold for risk prevention, and focus on addressing residual risks. It must include clear provisions for regulating hydrosphere plastic pollution (HPP) to mitigate land-based pollution and scientifically define fundamental legal concepts to foster coordinated action among States. Moreover, the convention should establish standardized monitoring methodologies and assessment criteria to ensure accurate evaluation of the pollution status. [ABSTRACT FROM AUTHOR]
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- 2024
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22. Australian perspectives on environmental practice: A national survey with human service professionals.
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Boetto, Heather, Bowles, Wendy, Ramsay, Sylvia, Shephard, Monique, and Cordoba, Pushkar Sebastian
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POLLUTION prevention , *ENVIRONMENTAL health , *SOCIAL workers , *CONSERVATION of natural resources , *PROFESSIONAL practice , *RESEARCH funding , *OCCUPATIONAL roles , *SOCIAL services , *CLIMATE change , *SOCIAL worker attitudes , *SUSTAINABILITY , *DESCRIPTIVE statistics , *ECOSYSTEMS , *SOCIAL responsibility , *SOCIAL work research , *SOCIAL case work , *SURVEYS , *THEMATIC analysis , *RESEARCH methodology , *PUBLIC welfare , *DATA analysis software , *SOCIAL support , *PRACTICAL politics , *WELL-being , *INDIGENOUS Australians - Abstract
Summary: This article reports on research exploring the perspectives of Australian social work and human service professionals about environmental practice. An online survey consisting of quantitative and qualitative questions was conducted, recruiting 303 participants from the human services sector. Quantitative data were analyzed descriptively using SPSS and qualitative data analyzed thematically using NVivo. Findings: Overall, results indicated that participants strongly supported an environmental focus in human services at personal and professional levels of practice. However, while participants expressed values supporting environmental practice, its implementation was less frequently reported. The adverse impacts of climate change were reported as strongly impacting the well-being of service users, and a general lack of support from employing organizations to facilitate environmental practice was evident. Despite a strong belief in the value of Australian First Nations knowledges, limited engagement with Australian First Nations peoples was practiced. Applications: Implications suggest the need to examine the practical realities of environmental practice including the disconnect between values and action. Given that participants reported adverse impacts of climate change on people and communities, but faced significant challenges implementing environmental action, the need to disrupt barriers caused by the dominant neoliberal discourse is critical. Likewise, disrupting the prevailing colonialist discourse by working alongside First Nations peoples to decolonize society and the profession is essential for enacting principles of environmental sustainability. [ABSTRACT FROM AUTHOR]
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- 2024
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23. Analysis of policy measures and feedback effects on industry transformation towards carbon neutrality.
- Author
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Ahlfs, Sören and Kieckhäfer, Karsten
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POLLUTION prevention ,GREENHOUSE gases prevention ,POLICY sciences ,ECOLOGICAL impact ,GOVERNMENT policy ,INVESTMENTS ,POWER resources ,SUSTAINABILITY ,SYSTEMS theory ,INDUSTRIES ,SYSTEM analysis ,CARBON dioxide - Abstract
Motivated by the urgent need to curb carbon emissions substantially over the next years and decades, we develop a qualitative system dynamics model to investigate the role of feedback effects on the transformation of the industry sector towards carbon neutrality. Through systems thinking, this research analyses the complex interactions between policy measures, investment decisions in different environmental measures to reduce CO2 emissions (e.g., use of electric and thermal energies from renewables and increase of energy efficiency), CO2 compliance, the pressure to take further climate action, the industry's economic success and the availability of investment funds. The study contributes to qualitatively identify and explore levers that policymakers can use to encourage industry to invest further in climate protection measures. Moreover, it provides an important basis for the development of quantitative modelling approaches. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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24. Heavy metals in soils derived from sedimentary rocks of the Gurgueia River watershed, Northeast, Brazil: background values, distribution and ecological risk assessment.
- Author
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Alves, Paula Nascimento, Cardoso, Kaique Mesquita, Nascimento, Clistenes Williams Araújo do, Barros, Juliana da Silva, Sena, Antonny Francisco Sampaio de, Morais, Pâmalla Graziely Carvalho, Saraiva, Paloma Cunha, Escobar, Maria Eugênia Ortiz, Cunha, Karina Patrícia Vieira da, and Boechat, Cácio Luiz
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ECOLOGICAL risk assessment ,ENVIRONMENTAL quality ,POLLUTION prevention ,SOIL conservation ,COPPER - Abstract
The concentrations of heavy metals (HMs) can be increased by various anthropogenic activities such as mining, fuel combustion, pesticide use, and urban development, which can alter the mechanisms determining their spatial variability in the environment. Determining natural concentrations, monitoring, and assessing potential ecological risks are essential in the management of pollution prevention policies and soil conservation in watersheds. The aim of this study was to determine HMs natural concentrations, establish quality reference values (QRVs), and evaluate pollution indices in a watershed-scale. Composite surface soil samples (n = 115) were collected from areas: native vegetation, pasture, perennial crops, urbanization, planted forest, annual crops, and desertification. The soil samples digestion followed the EPA 3051A, and metals determination in ICP-OES. The data were subjected to the Kruskal–Wallis test, Spearman's correlation, multivariate clustering analysis and. geostatistics. The QRVs established (75th) for the Gurgueia River watershed in descending order were (mg kg
−1 ): V (26.16) > Cr (18.06) > Pb (6.24) > Zn (3.86) > Cu (2.66) > Ni (1.45) > Co (0.57) > Mo (0.46) > Cd (0.07). The concentrations of Cd, Co, Cr, Mo, Ni, V, and Zn in types of land and management practices were significantly increased compared to those in natural vegetation. Overall, the watershed falls into the categories of minimal to moderate enrichment, moderate to considerable contamination, and low to moderate potential ecological risk, with Cd presenting elevated values. The percentages of polluted samples ranged from 14.3 to 82.5%, indicating the need for monitoring these areas to ensure environmental quality and food safety. [ABSTRACT FROM AUTHOR]- Published
- 2024
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25. Joining Forces: The Spillover Effects of EPA Enforcement Actions and the Role of Socially Responsible Investors.
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Dasgupta, Sudipto, Huynh, Thanh D, and Xia, Ying
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SOCIAL responsibility of business ,ENVIRONMENTAL responsibility ,BUSINESS ethics ,MUTUAL funds ,EMISSIONS (Air pollution) ,AIR pollution emissions prevention ,POLLUTION prevention - Abstract
We find that firms reduce toxic emissions at their local plants following EPA enforcement actions against nearby plants operated by peer firms that compete in the same product market. These reductions are more pronounced for plants located near socially responsible mutual funds (SRMFs) that hold these plants' parent firms' shares. Close proximity to SRMFs is associated with real investment in abatement measures to mitigate emissions. While plants increase emissions again in the long run, such reversals do not occur in plants located near SRMFs. Taken together, our results suggest that local SRMFs complement EPA enforcement in influencing plants' emissions. Authors have furnished an Internet Appendix , which is available on the Oxford University Press Web site next to the link to the final published paper online. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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26. Optimizing electrokinetic remediation for pollutant removal and electroosmosis/dewatering using lateral anode configurations.
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Abou-Shady, Ahmed, Eissa, Doaa, Abd-Elmottaleb, Osama, Bahgaat, Asmaa K., and Osman, Mohamed A.
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SOIL remediation , *POWER resources , *ARTIFICIAL plant growing media , *POLLUTION prevention , *ION migration & velocity - Abstract
Soil electrokinetics (SEK) research has been widely used in various fields such as soil remediation, dewatering, land restoration, geophysics, sedimentation, pollution prevention, consolidation, and seed germination. According to our most recent published research on SEK process design modifications during the last 30 years (1993–2022), more than 150 designs have been introduced to assure SEK's maximum performance. Incorporating lateral electrodes/anodes was not documented in the existing literature, which motivated us to investigate the output of this design. In this study, we aimed to enhance the performance of the perforated cathode pipe soil electrokinetic remediation (SEKR) system (PCPSS) for removing inorganic pollutants by installing lateral anodes (LA-PCPSS) using two approaches. In the first approach, the LA-PCPSS was connected to different sources of applied voltages (DSAV) from different power supplies, while in the second approach, the entire operation system was connected to the same source of applied voltage (SSAV). We used the Taguchi approach (L9OA) to determine the optimal levels of applied voltages for the DSAV system. The results indicated that the DSAV-(LA-PCPSS) could be optimized at an applied voltage of 1 V cm−1 for the surface and the first and second lateral anodes. The indigenous Sr (elements found in the tested soil without artificial pollution) in kaolinite showed the best response among other elements (Ni and other indigenous elements) when optimizing the DSAV-(LA-PCPSS) using the Taguchi approach. Installing lateral anodes (position B) supplied to low applied voltage (0.5 V cm−1) improved the electroosmosis (EO) rate/dewatering. Reverse migration of ions was observed during the remediation of real contaminated soil using the SSAV-(LA-PCPSS). The DSAV-(LA-PCPSS) is considered an appropriate design for the SEKR of inorganic pollutants, and increases the EO flow/dewatering. Additionally, the increased energy consumption employing the DSAV-(LA-PCPSS) was extremely minimal compared to the traditional PCPSS, which is an economic advantage for SEKR research. The DSAV-(LA-PCPSS) is still under optimization/intensification process, and subsequent processes will be examined to achieve high efficiency. [ABSTRACT FROM AUTHOR]
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- 2024
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27. A Hybrid Model Combined Deep Neural Network and Beluga Whale Optimizer for China Urban Dissolved Oxygen Concentration Forecasting.
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Wang, Tianruo, Ding, Linzhi, Zhang, Danyi, and Chen, Jiapeng
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CONVOLUTIONAL neural networks ,ARTIFICIAL neural networks ,WATER quality monitoring ,POLLUTION management ,MUNICIPAL water supply ,POLLUTION prevention - Abstract
The dissolved oxygen concentration (DOC) is an important indicator of water quality. Accurate DOC predictions can provide a scientific basis for water environment management and pollution prevention. This study proposes a hybrid DOC forecasting framework combined with Variational Mode Decomposition (VMD), a convolutional neural network (CNN), a Gated Recurrent Unit (GRU), and the Beluga Whale Optimization (BWO) algorithm. Specifically, the original DOC sequences were decomposed using VMD. Then, CNN-GRU combined with an attention mechanism was utilized to extract the key features and local dependency of the decomposed sequences. Introducing the BWO algorithm solved the correction coefficients of the proposed system, with the aim of improving prediction accuracy. This study used 4-h monitoring China urban water quality data from November 2020 to November 2023. Taking Lianyungang as an example, the empirical findings exhibited noteworthy enhancements in performance metrics such as MSE, RMSE, MAE, and MAPE within the VMD-BWO-CNN-GRU-AM, with reductions of 0.2859, 0.3301, 0.2539, and 0.0406 compared to a GRU. These results affirmed the superior precision and diminished prediction errors of the proposed hybrid model, facilitating more precise DOC predictions. This proposed DOC forecasting system is pivotal for sustainably monitoring and regulating water quality, particularly in terms of addressing pollution concerns. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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28. Distribution Characteristics and Pollution Assessment of Soil Aggregates of Cr, Ni, and Cu in a Region of Northern Hebei Province.
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Xie, Sha, Zhang, Jie, Liu, Zhijun, Guo, Xiaofei, Sun, Yuebing, and Huang, Qingqing
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COPPER , *SOIL structure , *SOIL depth , *SOIL pollution , *POLLUTION prevention , *HEAVY metals - Abstract
In order to understand the distribution, occurrence forms, and influencing factors of chromium (Cr), nickel (Ni), and copper (Cu) in soil aggregates, a five-step extraction method was used to determine their forms in soil aggregates of different sizes in a mountainous area of northern Hebei Province. The ecological risk was evaluated using the geo-accumulation index (Igeo) and primary and secondary comparison value method (RSP). Redundancy analysis (RDA) was used to identify the main factors affecting the distribution and morphology of Cr, Ni, and Cu in soil. The results showed that in vertical distribution, Cr, Ni, and Cu were concentrated in the surface soil, but there was no clear relationship between soil depth and heavy metal content. The distribution characteristics revealed that Cr, Ni, and Cu in soils mainly existed in relatively stable Fe-Mn oxides and residue states, and their morphology in aggregates did not vary considerably with particle size. Furthermore, the RSP results showed that the pollution risk of Cr, Ni, and Cu was higher, with Cr and Ni posing the highest risk in the 0.5–1 mm and 1–2 mm particle size ranges. The RDA results showed that available phosphorus and soil organic matter (SOM) were the main factors that caused the characteristic difference of 1–2 mm aggregate components. Additionally, hydrolyzed nitrogen, cation exchange capacity (CEC), and calcium exchange have positive effects on the residual state of Cr. For Ni, SOM, CEC and exchangeable calcium have positive effects on the binding state of Fe and Mn oxides and carbonate. For Cu, CEC and exchangeable calcium are the key factors that cause the morphological differences of aggregates. Based on the above results, a theoretical basis has been provided for the prevention and control of pollution in the subsequent research area. [ABSTRACT FROM AUTHOR]
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- 2024
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29. Environmental impact of dietary patterns in 10 European countries; a cross-sectional analysis of nationally representative dietary surveys.
- Author
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Alves, Ricardo, Perelman, Julian, Chang, Kiara, and Millett, Christopher
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POLLUTION prevention , *CROSS-sectional method , *DIETARY patterns , *RESEARCH funding , *FOOD safety , *CLIMATE change , *SEX distribution , *MULTIVARIATE analysis , *DESCRIPTIVE statistics , *SUSTAINABILITY , *SURVEYS , *FOOD habits , *SOCIODEMOGRAPHIC factors , *FOOD supply , *COMPARATIVE studies , *GREENHOUSE gases , *DATA analysis software , *AGRICULTURE , *REGRESSION analysis - Abstract
Background Changing dietary patterns is essential to reducing the substantial environment impact of agriculture and food production systems. We performed a cross-country comparison of dietary patterns and their associated environmental impact in Europe, including by sociodemographic factors. Methods We analyzed pooled cross-sectional dietary records collected during 2010–18 from 10 European countries using the European Food Safety Authority (EFSA) Comprehensive European Food Database (16 508 adults; aged 18–79 years). Each food consumed was mapped to the corresponding environmental impact data using the SHARP Indicators Database, which provides greenhouse gas emission (GHGE) and land use (LU) values of approximately 900 foods. Total diet-associated environmental impact was calculated for each person and averaged across multiple days. Multivariable linear regression models were used to compare diet-associated GHGE and LU between population subgroups (gender, age, education and diet type) with country-level fixed effects. Results The mean dietary GHGE and LU per capita ranged from 4.0 kgCO2/day and 5.0 m2*year/day in Spain to 6.5 kgCO2eq/day and 8.2 m2*year/day in France. Diet-related GHGE and LU (per kg/food) were lower among females (2.6 kgCO2eq/day, B = −0.08, P < 0.01; 3.2 m2*year/day, B = −0.11, P < 0.01), older population aged 66–79 (2.6 kgCO2eq/day, B = −0.03, P < 0.01; 3.4 m2*year/day, B = −0.4, P < 0.01), people following vegetarian diets (1.7 kgCO2eq/day, B = −0.07, P < 0.01; 2.0 m2*year/day, B = −0.07, P < 0.01), and higher among individuals with secondary education (2.7 kgCO2eq/day, B = 0.05, P < 0.01; 3.6 m2*year/day, B = −0.05, P < 0.01). Conclusions Environmental footprints vary substantially across countries, dietary patterns and between different sociodemographic groups in Europe. These findings are crucial for the development of country-specific food policies aimed at promoting environmentally sustainable diets. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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30. PROMOTING EDUTOURISM AND SUSTAINABLE WASTE MANAGEMENT IN SANTEN ISLAND BEACH, INDONESIA, THROUGH COMMUNITY EMPOWERMENT.
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Eka Sari, Jayanti Dian, Yulianti, Yunika Tri, Firmansyah, Januar, Fikri, Faisal, Yudhana, Aditya, Praja, Ratih Novita, Mandagi, Ayik Mirayanti, and Hairi, Farizah Mohd
- Subjects
POLLUTION prevention ,WASTE management ,TOURISM ,LECTURE method in teaching ,ENVIRONMENTAL health ,LIFESTYLES ,CONSERVATION of natural resources ,SELF-efficacy ,PHILOSOPHY of education ,HUMAN services programs ,FOCUS groups ,ENVIRONMENTAL monitoring ,RESOURCE allocation ,WASTE recycling ,EVALUATION of human services programs ,QUESTIONNAIRES ,CLIMATE change ,SUSTAINABILITY ,ECOSYSTEMS ,MENTORING ,DISCUSSION ,TRANSPORTATION ,MOTIVATION (Psychology) ,OCEAN ,HOUSEHOLD supplies ,PLASTICS ,COMMUNITY services ,BUDGET ,COMMITMENT (Psychology) ,BRAINSTORMING - Abstract
Santen Island Beach in the Banyuwangi Regency of Indonesia possesses immense potential for beach tourism. Unfortunately, the charm of this destination has been marred by inadequate waste management. This paper outlines a community service program aimed at enhancing awareness, understanding, and active participation of local community groups in addressing waste management issues by transforming waste into ecobrick greenhouses. The program employed various methods, including lectures, discussions, and brainstorming sessions, which were conducted on Pulau Santen Beach with a focus on the local population. The application of a local development model was central to our community service activities, resulting in increased understanding, awareness, and participation among the target groups. The heightened involvement was marked by enthusiastic participation in ecobrick production, effective household waste sorting (particularly plastic waste), and the formation of committed cadres. The local community exhibited increased knowledge through their ability to respond to questions and plan follow-up actions. This initiative significantly improved the knowledge, awareness, and engagement of the target community in managing waste and converting it into ecobricks. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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31. Mine Water Safety and Environment: Chinese Experience.
- Author
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Xu, Zhimin and Sun, Yajun
- Subjects
MINES & mineral resources ,COAL reserves ,MINE water ,MINE closures ,ABANDONED mines ,LONGWALL mining ,POLLUTION prevention - Abstract
This article explores the importance of mine water safety and environmental protection in the context of coal mining in China. It discusses the complex hydrogeological conditions of mines and the measures needed to ensure safe mining operations. The article also addresses challenges related to groundwater pollution, mine water resource utilization, and ecological environment protection. It further delves into various topics related to mine water management, including risk assessment, preventive measures, water source identification, and the treatment and utilization of mine water. The goal is to promote sustainable and environmentally friendly practices in the coal industry. The document also presents research studies on mine water safety and environmental pollution in coal mines, covering topics such as the impact of mining activities on microbial communities and geochemical characteristics, the use of curtain grouting technology for mine water safety management, and the combined effects of hydrodynamics, chemistry, and microbes on mine water quality. The document emphasizes the need for further research in areas such as mine water reinjection, geological storage, and the mechanisms of multi-field coupling in mine water quality. Overall, the studies aim to provide insights and solutions for preventing and controlling mine water hazards and pollution. [Extracted from the article]
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- 2024
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32. Revolutionizing Ocean Cleanup: A Portuguese Case Study with Unmanned Vehicles Fighting Spills.
- Author
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Pessanha Santos, Nuno, Moura, Ricardo, Lourenço Antunes, Teresa, and Lobo, Victor
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MARINE pollution ,HAZARDOUS substances ,POLLUTION prevention ,OPERATING costs ,MARITIME safety - Abstract
It is of the utmost importance for every country to monitor and control maritime pollution within its exclusive economic zone (EEZ). The European Maritime Safety Agency (EMSA) has developed and implemented the CleanSeaNet (CSN) satellite monitoring system to aid in the surveillance and control of hydrocarbon and hazardous substance spills in the ocean. This system's primary objective is to alert European Union (EU) coastal states to potential spills within their EEZs, enabling them to take the necessary legal and operational actions. To reduce operational costs and increase response capability, the feasibility of implementing a national network (NN) of unmanned vehicles (UVs), both surface and aerial, was explored using a Portuguese case study. The following approach and analysis can be easily generalized to other case studies, bringing essential knowledge to the field. Analyzing oil spill alert events in the Portuguese EEZ between 2017 and 2021 and performing a strengths, weaknesses, opportunities, and threats (SWOT) analysis, essential information has been proposed for the optimal location of an NN of UVs. The study results demonstrate that integrating spill alerts at sea with UVs may significantly improve response time, costs, and personnel involvement, making maritime pollution combat actions more effective. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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33. Characteristics of Volatile Organic Compounds Pollution and Its Effect on Ozone in Yantai City.
- Author
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WANG Shaowei, LI Ming, PAN Yuyan, LI Shaofei, XU Hongwei, ZHANG Yan, and ZANG Deji
- Subjects
VOLATILE organic compounds ,EMISSIONS (Air pollution) ,POLLUTANTS ,POLLUTION prevention ,OZONE - Abstract
In order to study the characteristics of volatile organic compounds (VOCs) in Yantai city, VOCs chemical composition, concentration characteristics, ozone generation potential (OFP) and pollutant sources were analyzed based on VOCs monitoring data in Yantai in 2020 and 2022. Results indicated that the volume concentration of VOCs decreased by 12.4% from 2020 to 2022, which was attributed to the significant decline in the concentration of oxygen-containing volatile organic compounds (OVOCs) (decreased by --33.1%) with a stable concentration of ozone precursors (PAMS). Species concentration analysis showed that alkanes and aldehydes ranked first in the volume concentration of PAMS and OVOCs. The three components with the highest volume concentration were formaldehyde, ethane and propane, respectively, and the three components with the highest mass concentration were w-hexane, formaldehyde and propane, respectively. Time distribution characteristics displayed that the volume concentration of PAMS and OVOCs fluctuated greatly, and high concentrations were prone to appear in July and August. Total OFP value of Yantai city also showed a downward trend, decreasing by 14.0% compared with 2020, among which the OFP value of various types of VOCs was as follows % aldehydes > alkenes> alkanes > aromatics > ketones > alkynes, and the top three contribution values accounted for 88.2%. According to the calculated value of OFP, formaldehyde and acetaldehyde were always the top two contributors to the generation of O
3 in the ambient are in Yantai city, and the ozone prevention and control in Yantai city should focus on the following five components % formaldehyde, acetaldehyde, 2-methyl-1, 3- butadiene, ethylene and propylene. Source analysis results showed that the VOCs in Yantai city came from aging are mass transport, in which formaldehyde and acetaldehyde were mainly from motor vehicle exhaust and man-made source. Aromatic hydrocarbons were mainly derived from vehicle exhaust and coal/biomass interaction in which motor vehicles had a more significant impact. In conclusion, this study provides a scientific basis for the formulation of VOCs emission and O3 pollution prevention and control measure. It is suggested that Yantai city should conduct accurate control of anthropogenic emissions (especially motor vehicles) and coal/biomass by combusting VOCs concentration characteristics, species characteristics, time distribution characteristics and chemical reactivity analytics, so as to improve the ambient are quality of Yantai city. [ABSTRACT FROM AUTHOR]- Published
- 2024
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34. Deep Learning Methods to Mitigate Human-Factor-Related Accidents in Maritime Transport.
- Author
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Cao-Feijóo, Genaro, Pérez-Canosa, José M., Pérez-Castelo, Francisco J., and Orosa, José A.
- Subjects
ARTIFICIAL intelligence ,CONVOLUTIONAL neural networks ,POLLUTION prevention ,SHIP captains ,LEARNING ,IMAGE recognition (Computer vision) - Abstract
Artificial intelligence aims to be the solution to multiple engineering problems by trying to emulate the human learning process. In this sense, maritime transport standards have clearly evolved, which are based on two principal pillars: the International Convention for the Safety of Life at Sea Convention (SOLAS) and the International Convention for the Prevention of Pollution from Ships (MARPOL). Based on a formal safety assessment research process, these pillars try to solve most of the maritime transport accidents, which, in their final steps, are associated with human factors. In this research, an original methodology employing a deep learning process for image recognition during mooring line operation, a dangerous process on ships, is developed. The main results indicate that the proposed method is an excellent tool for advising ship officers on watch and, consequently, provides a new way to prevent human factors onboard from causing accidents, which in the future must be considered in international standards. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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35. Study of the Dynamic Adaptive Calculation Method for River Water Environmental Capacity.
- Author
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Gao, Yating, Wei, Na, Xie, Jiancang, Liang, Jichao, Gao, Fei, and Zhou, Guixing
- Subjects
WATER pollution prevention ,WATER management ,ENVIRONMENTAL management ,POLLUTION ,DYNAMIC simulation ,WATERSHEDS ,POLLUTION prevention - Abstract
Controlling the total amount of river pollutant discharge is an important means of water resource protection and management, and it is also a necessary condition for ensuring the normal functioning of water areas. The total amount of pollutant discharge is closely related to the water environmental capacity (WEC). Shifting from the traditional method of calculating WEC to dynamic analyses and calculations, concerning practical applications, in this paper, a dynamic adaptive calculation method is proposed for the river WEC that considers the changes in adaptive demand and hydrological conditions. In this method, the dynamic WEC is represented by intervals based on dynamic changes in different spatial and temporal scales, various calculation methods, hydrological conditions, and parameters. According to the calculation results for the WEC, a variable interval was formed. Taking the Shaanxi section of the main stream of the Wei River as the research object, with the support of an integrated platform, the dynamic adaptive calculation of the WEC in the Shaanxi section of the Wei River was realized, and a corresponding simulation system was constructed. The verification results show that (1) the dynamic calculation of WEC can be realized by freely combining different model methods and calculation conditions; (2) the WEC is described using a variable interval, which has strong applicability and operability; and (3) the simulation system can quickly adapt to the changing needs of practical applications and provide managers with visual and credible decision support. The research results provide a theoretical basis for river water environment pollution prevention and environmental management decision-making and help in the high-quality development of the river basin. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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36. Deep Learning for Water Quality Prediction—A Case Study of the Huangyang Reservoir.
- Author
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Chen, Jixuan, Wei, Xiaojuan, Liu, Yinxiao, Zhao, Chunxia, Liu, Zhenan, and Bao, Zhikang
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WATER management ,WATER quality ,POLLUTION prevention ,WATER supply ,POLLUTION management - Abstract
Water quality prediction is a fundamental prerequisite for effective water resource management and pollution prevention. Accurate predictions of water quality information can provide essential technical support and strategic planning for the protection of water resources. This study aims to enhance the accuracy of water quality prediction, considering the temporal characteristics, variability, and complex nature of water quality data. We utilized the LTSF-Linear model to predict water quality at the Huangyang Reservoir. Comparative analysis with three other models (ARIMA, LSTM, and Informer) revealed that the Linear model outperforms them, achieving reductions of 8.55% and 10.51% in mean square error (MSE) and mean absolute error (MAE), respectively. This research introduces a novel method and framework for predicting hydrological parameters relevant to water quality in the Huangyang Reservoir. These findings offer a valuable new approach and reference for enhancing the intelligent and sustainable management of the reservoir. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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- View/download PDF
37. Heavy metal contamination risk assessment of commercial fish in China's Dongting Lake.
- Author
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Liu, Dong, Li, Hong, Wang, Chongrui, and Yuan, Xiping
- Subjects
FISHERIES ,GOLDFISH ,POLLUTION prevention ,CARP ,PELAGIC fishes ,ECOLOGICAL risk assessment ,HEAVY metals - Abstract
Rapid urbanization, industrialization, and intense agricultural practices in the cities and communities along the rivers have resulted in potentially toxic elements, such as heavy metals, being released into the river water and subsequently deposited into Dongting Lake, thereby posing a severe threat to fish, invertebrates, and humans. In this work, eight fish species, representing different kinds of feeding habits and living habitats, were collected from Dongting Lake, China. The concentration of heavy metals in the specimens was determined. Parameters related to fish consumption, such as food safety and health risks, were calculated. In descending order, the average heavy metal concentrations in the fish followed the trend: Zn>Cu>Pb>Cr>Cd>Hg. Moreover, some species of fish have concentrations of Cd and Pb that exceed food safety standards. The concentration of distinct heavy metals varied widely, but the total concentration trended as follows: predatory, omnivorous > filter > herbivorous, benthic > pelagic fish. The hazard quotient and hazard index values were < 1 for all trophic levels of fish, suggesting that consuming the muscle from fish retrieved from Dongting Lake may not present a potential human health risk to adults in terms of heavy metal contamination. Nevertheless, we recommend that Cyprinus carpio, Carassius auratus, and Silurus asotus should be consumed less, and that pollution prevention and control measures should be implemented to reduce Pb, Cd and Cr pollution. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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38. A review of groundwater iodine mobilization, and application of isotopes in high iodine groundwater.
- Author
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Zheng, Yulu, Li, Haiming, Li, Mengdi, Zhang, Cuixia, Su, Sihui, and Xiao, Han
- Subjects
IODINE isotopes ,GROUNDWATER pollution ,GROUNDWATER management ,POLLUTION management ,PHYSICAL & theoretical chemistry ,POLLUTION prevention - Abstract
Excessive intake of iodine will do harm to human health. In recent years, high iodine groundwater has become a global concern after high arsenic and high fluorine groundwater. A deep understanding of the environmental factors affecting iodine accumulation in groundwater and the mechanism of migration and transformation is the scientific prerequisite for effective prevention and control of iodine pollution in groundwater. The paper comprehensively investigated the relevant literature on iodine pollution of groundwater and summarized the present spatial distribution and hydrochemical characteristics of iodine-enriched groundwater. Environmental factors and hydrogeological conditions affecting iodine enrichment in aquifers are systematically summarized. An in-depth analysis of the hydrologic geochemistry, physical chemistry, biogeochemistry and human impacts of iodine transport and transformation in the surface environment was conducted, the results and conclusions in the field of high iodine groundwater research are summarized comprehensively and systematically. Stable isotope can be used as a powerful tool to track the sources of hydrochemical components, biogeochemistry processes, recharge sources and flow paths of groundwater in hydrogeological systems, to provide effective research methods and means for the study of high iodine groundwater system, and deepen the understanding of the formation mechanism of high iodine groundwater, the application of isotopic technique in high iodine groundwater is also systematically summarized, which enriches the method and theory of high iodine groundwater research. This paper provides more scientific basis for the prevention and control of groundwater iodine pollution and the management of groundwater resources in water-scarce areas. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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39. Sources, occurrence characteristics and potential risks of microplastics in farmland soils: A review.
- Author
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XIAO Jinnan and ZHANG Zhenming
- Subjects
SOIL pollution ,POLLUTION prevention ,FARM risks ,MICROPLASTICS ,SOILS - Abstract
This study systematically reviews the source characteristics, occurrence characteristics, pollution hazards, and potential risks of microplastics in agricultural soils in China. Furthermore, the key issues and future research directions of the microplastic pollution in farmland soil were discussed. It is expected to provide scientific ideas for systematic analysis and exploration of the microplastic pollution mechanisms and the prevention and control of risks in farmland soils. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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40. Navigating sustainable manufacturing practices in small and medium‐sized enterprises: Empirical evidence from an emerging economy.
- Author
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Peter, Darren, Peter, Marsyall, Peter, Paul, and Yacob, Peter
- Subjects
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SUSTAINABILITY , *MANUFACTURING process management , *POLLUTION prevention , *STRUCTURAL equation modeling , *WASTE minimization - Abstract
Sustainable manufacturing practices (SMPs) aim to minimize environmental effects throughout the manufacturing process by employing measures such as waste reduction, resource optimization, pollution prevention, energy‐efficient manufacturing processes and effective management of products at the end of their lifecycle. Although SMPs are widely studied in developed countries, their advocation and implementation are still in the early stages of development in emerging economies. Consequently, this article aims to identify SMPs among small and medium‐sized manufacturing enterprises (SMEs) in Malaysia. Data were collected based on a quantitative research method using online and offline mail. A total of 189 manufacturing SMEs were selected based on judgmental sampling techniques, and structural equation modelling AMOS was used to analyse the data. The results indicated a high positive correlation between perceived environmental performance, perceived quality performance, product innovation and process innovation. In addition, the perceived quality performance positively and directly affects process and product innovation. Thus, perceived environmental performance plays a role in directly and positively impacting product and process innovation. However, despite this, the perceived quality performance also affects SMPs directly and positively, with process innovation directly and positively impacting product innovation. The study's findings and recommendations can help Malaysian manufacturing SMEs to integrate and assist in understanding the current body of knowledge on the challenges of implementing SMPs in SMEs. [ABSTRACT FROM AUTHOR]
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- 2024
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41. METHODS OF LIMITING FUEL CONSUMPTION BY SEAGOING VESSELS IN ORDER TO REDUCE EMISSIONS OF HARMFUL SUBSTANCES INTO THE ATMOSPHERE.
- Author
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GIERNALCZYK, Mariusz and KAMIŃSKI, Piotr
- Subjects
- *
ENERGY consumption , *POLLUTION prevention , *SHIP fuel , *ENERGY management , *GREENHOUSE gas mitigation - Abstract
The aim of the paper is to draw attention to the problem of emitting toxic compounds into the atmosphere by seagoing ships. Annex VI of the MARPOL Convention, which came into force in 2005, concerns the prevention of air pollution from ships, forced shipowners to use solutions aimed at limiting the emission of these harmful substances into the atmosphere. One of the instruments enabling the implementation of these guidelines is the design energy efficiency index EEDI, introduced obligatorily for designed and newly built ships. Since 2013, the regulations oblige the shipowners to maintain an effective energy management plan during ship's operation, called the SEEMP (Ship Energy Efficiency Management Plan). The paper presents factors that influence the reduction of fuel consumption by ships, leading to a reduction in emissions of harmful substances into the atmosphere and thus achieving the required EEDI and other indicators. These are factors related to the ship's hull, the main propulsion engine and the propeller-rudder system. The influence of each of these factors on the level of fuel consumption by the ship was indicated. The manuscript highlights the methods of reducing fuel consumption by seagoing ships aimed at reducing emissions of toxic compounds into the atmosphere, which are currently the most popular and effective, and relate mainly to the hull and main propulsion engines. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
- View/download PDF
42. Assessment and driving factor analysis of total nitrogen loads: a case study of counties from 2000 to 2020 in Henan Province, China.
- Author
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Li, Xingming, Li, Ling, Chen, Shuaiqi, Shang, Yuanyi, Wu, Yong, Li, Donghao, and Wang, Xiuli
- Subjects
- *
NONPOINT source pollution , *LIVESTOCK breeding , *POULTRY breeding , *PEARSON correlation (Statistics) , *RANDOM forest algorithms , *POLLUTION prevention - Abstract
China's unsustainable agricultural production activities have caused severe agricultural non-point source pollution (ANPSP), particularly nitrogen source pollution (NSP), which impacts farmland ecological environments. Understanding NSP is important for managing ANPSP and improving environmental water quality. Thus, inventory analysis methods were used to assess county-level total nitrogen (TN) loads in large-scale agricultural areas, analyze spatial and temporal variations in TN loads, examine the major sources of TN loads and identify the driving factors of DITN using Pearson correlation and random forest (RF) methods. The results showed that (1) TN loads and discharge intensity decreased by 4.59% and 12.7%, respectively, increasing and then decreasing via market regulations, policy incentives, and policy constraints. The eastern and northern Henan Province plain areas were highly discharged. (2) The major pollution sources varied, with the total contributions of mineral fertilizers and livestock and poultry breeding to TN being 73.53% and 81.78%, respectively. Farmland solid waste contributed minimally but increased yearly from 10.84 to 19.74%. (3) The discharge intensity of TN was highly significantly negatively correlated with the urbanization rate, economic development and slope; neither was significantly correlated with arable land. The RF results showed that total mineral fertilizer consumption and total livestock and poultry production were the major factors controlling the NSP in Henan Province. China's agricultural policies have slightly reduced pollutant discharge intensities, but the situation remains grim. This study provides a scientific basis for the development of differentiated TN control measures in Henan Province, which is important for improving pollution prevention and control capabilities. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
43. Pb nanospheres encapsulated in metal–organic frameworks-derived porous carbon as anode for high-performance sodium-ion batteries.
- Author
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Zhao, Xiaoying, Liu, Ningbo, Mu, Chaonan, Qin, Bin, and Wang, Liubin
- Subjects
- *
SODIUM ions , *NANOPARTICLES , *POLLUTION prevention , *ENERGY density , *ION transport (Biology) - Abstract
Pb metallic nanospheres embedded within conductive carbon frameworks (Pb@C) are prepared by a facile coprecipitation and pyrolysis method using MOFs as the precursor and template. The Pb@C electrode presents a high reversible capacity of 379.1 mAh/g at 2 A/g and capacity retention of 88.2% after 6000 cycles, corresponding to a capacity loss of 0.00748% per cycle. [Display omitted] Alloying-type anode materials are considered promising candidates for sodium-ion batteries (SIBs) due to their high theoretical capacities. However, their application is limited by the severe capacity decay stemming from dramatic volume changes during Na+ insertion/extraction processes. Here, Pb nanospheres encapsulated in a carbon skeleton (Pb@C) were successfully synthesized via a facile metal–organic frameworks (MOFs)-derived method and used as anodes for SIBs. The nanosized Pb particles are uniformly incorporated into the porous carbon framework, effectively mitigating volume changes and enhancing Na+ ion transport during discharging/charging. Benefiting from this unique architecture, a reversible capacity of 334.2 mAh g−1 at 2 A g−1 is achieved after 6000 cycles corresponding to an impressive 88.2 % capacity retention and a minimal capacity loss of 0.00748 % per cycle. Furthermore, a high-performance full sodium-ion battery of Pb@C//NVPF was constructed, demonstrating a high energy density of 291 Wh kg−1 and power density of 175 W kg−1. This facile MOFs-derived method offers insights into the design of high-capacity alloy-type anode materials using Pb sources, opening up new possibilities for innovative approaches to Pb recycling and pollution prevention. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
44. Understanding the sources, fate and effects of microplastics in aquatic environments with a focus on risk profiling in aquaculture systems.
- Author
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Nabi, Naveed, Ahmad, Ishtiyaq, Amin, Adnan, Rather, Mohd Ashraf, Ahmed, Imtiaz, Hajam, Younis Ahmad, Khursheed, Saba, Malik, Monisa Mehboob, and Abubakr, Adnan
- Subjects
FISH farming ,PLASTICS ,PLASTIC analysis (Engineering) ,MICROPLASTICS ,POLLUTANTS ,PLASTIC marine debris ,POLLUTION prevention - Abstract
The upsurge in the usage of plastics on a global scale has led to the widespread occurrence of microplastics (MPs) in aquatic environments. This review starts by outlining the current global scenario of plastic production. It then delves into the various sources of plastics and their entry into aquatic systems, including their impact on fisheries and the aquaculture sector. The detailed analysis of plastic entry and various methods of degradation into small sized, MPs followed by their transport, uptake and trophic transference have been reviewed systematically. Besides, the review summarizes the current knowledge on impacts of MPs, their additives and associated contaminants on organisms living in the aquatic environment, particularly fish thriving in cultured conditions. The analysis of effects of MPs alone and in association with other contaminants like heavy metals, organic pollutants and leachates reveal serious effects such as cytotoxicity, immune response, oxidative stress, neurotoxicity, barrier attributes and genotoxicity among various aquatic species particularly, fish. In addition, the present review discusses MPs invasion into aquaculture systems, explores risk assessment both in terms of exposure risk and toxicological risks associated with biochemical nature, size, shape and concentration of MPs. Besides, risk management strategies and future prospective to control MPs associated hazards have also been highlighted. In summary, the present review outlines the various sources, fate, impact of MPs in aquatic environment highlighting the need to recognize MPs pollution as a serious threat to aquatic organisms and to formulate strategies including prevention, reduce, reuse and safe disposal of plastic material. [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
- View/download PDF
45. Research progress in micro-scale environmental monitoring, exposure and individual response in Chinese literature.
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Li, Liqun, Xu, Ziqi, and Zhou, Suhong
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ENVIRONMENTAL exposure ,ENVIRONMENTAL monitoring ,INFORMATION & communication technologies ,WEARABLE technology ,VIRTUAL reality ,POLLUTION prevention - Abstract
With China's remarkable progress in smart city and Information and Communication Technologies (ICTs), novel technologies have gradually permeated through research on micro-scale environmental exposure research. Consequently, the research has undergone a series of transitions and seen new progress. This article reviews and summarizes three transitions of micro-scale environmental monitoring, exposure, and individual response in Chinese literature:(1) the micro-scale transition in individual-level environment monitoring, including technologies such as mobile particulate monitors, portable physiological monitors, and virtual reality for micro-scale environmental monitoring; (2) the real-time transition towards individual environmental exposure measurement; (3) the individual response to environmental exposure. In this context, environmental exposure research intersects with many disciplines and contributes practical value in the fields of micro-spatial governance, healthy spatiotemporal behavior, and targeted pollution prevention. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. Dynamic Correlation between Reduction of Pollution and Carbon Emissions and Economic Growth in the Beijing-Tianjin-Hebei Urban Agglomeration.
- Author
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DI Qianbin, LIANG Chenlu, and CHEN Xiaolong
- Subjects
CARBON emissions ,EMISSIONS (Air pollution) ,ECONOMIC expansion ,AIR pollution control ,POLLUTION prevention ,POLLUTANTS - Abstract
From the perspective of two-way causality, this paper constructs a panel vector autoregressive model, and combines impulse response analysis and variance decomposition analysis to study the dynamic mechanism of the relationship between the reduction of pollution and carbon emissions and economic growth in the Beijing-Tianjin-Hebei urban agglomeration from 2006 to 2020. The results are shown as follows. (1) The sustained economic growth of the Beijing-Tianjin-Hebei urban agglomeration has become an important driving force for industrial wastewater and industrial sulfur dioxide emissions. There is a two-way interaction between industrial soot emissions and economic growth, and the impact of economic growth on carbon emissions in the Beijing-Tianjin-Hebei urban agglomeration is in line with the environmental Kuznets curve. With nonlinear and unstable characteristics, the reverse effect of carbon dioxide on economic growth has not yet reached a significant effect, and the carbon emission reduction mechanism needs to be further improved. (2) There are "leading effects" and "catch-up effects" between economic growth and pollution reduction and carbon reduction, and a long-term equilibrium relationship is formed. The strong self-inertia of economic growth is the incentive and evolutionary results of the increase of environmental pollutants and carbon emissions. (3) The implementation of the joint prevention and control policy of air pollution in the Beijing-Tianjin-Hebei urban agglomeration helps to strengthen the two-way interaction between the reduction of pollution and carbon emissions and economic growth. In order to ensure the sustainable development of the Beijing-Tianjin-Hebei urban agglomeration, it is necessary to promote the high-quality development of the regional economy through regional collaborative innovation, green and low-carbon transformation, joint prevention and control. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. A Success Story? Fifty Years of MARPOL.
- Author
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Ehlers, Peter
- Subjects
- *
POLLUTION prevention , *MARINE resources conservation , *ENVIRONMENTAL protection , *TREATIES , *GREENHOUSE gas mitigation - Abstract
The International Convention for the Prevention of Pollution from Ships (MARPOL 73/78) is the core of a comprehensive international legal regime for the prevention of pollution from ships. Over the past fifty years, it has developed a dynamic and comprehensive set of regulations, continuously amended and updated by sixty-six resolutions of Marine Environment Protection Committee and tacitly accepted by the Contracting Parties. In order to supplement and effectively apply the MARPOL requirements, the International Maritime Organization has produced extensive secondary legislation in the form of codes and guidelines, which by reference are incorporated into the Convention as binding law. MARPOL 73/78 has proven to be a suitable instrument for largely preventing discharges of harmful substances from ship operations and, in the event of accidents, for limiting the release quantity. However, it remains necessary to constantly adapt the regulations to new developments, in particular further reduction of CO2 emissions in shipping. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Spatial Heterogeneity Analysis and Risk Assessment of Potentially Toxic Elements in Soils of Typical Green Tea Plantations.
- Author
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Xu, Yaonan, Wang, Ying, Shafi, Abbas, He, Mingjiang, He, Lizhi, and Liu, Dan
- Subjects
- *
ECOLOGICAL risk assessment , *POLLUTION risk assessment , *TEA plantations , *POLLUTION prevention , *SOIL pollution - Abstract
The spatial heterogeneity of potentially toxic elements (PTEs) in a typical green tea-producing area in Zhejiang was investigated with application of geostatistics. The positive matrix factorization (PMF) was conducted for analysis of pollution sources and risk assessment of the soil of the tea garden. The results revealed that 93.52% of the study area did not exceed the PTEs risk screening value in the soil pollution risk control standard of agricultural land. The results of the spatial heterogeneity analysis showed that Cd and Pb had moderate spatial auto-correlation, exhibiting similar spatial distribution patterns. The high-value locations were distributed in the southeast of the study area, while low-value locations were distributed in the southwest of the study area. The Cr, As, and Hg had strong spatial auto-correlation, while Cr and As had similar spatial distribution patterns whose high-value areas and low-value areas were concentrated in the west and center of the study area, respectively. The Cd, Pb, and As originated from the agricultural source, transportation source, and industrial source, respectively, while Cr and Hg were from the natural source on the basis of the results of the PMF model. The results of a potential ecological risk assessment revealed that five PTEs in the study area were of low potential risk. The single-factor ecological risk ranking was Cd > As > Hg > Cr > Pb. The overall ecological risk in the study area was slight. The human health risk model indicates that there was a non-carcinogenic risk for children in the study area, and the high-value area was concentrated in the northwest of the study area. It is concluded that emphasis shall be given to excessive Cd caused by agricultural sources in the southeast of the study area, and control and monitoring will be strengthened in the northwestern part of the study area. The relevant measures for prevention of soil pollution must be conducted. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
49. 加筋保土柔性污染阻隔管控技术在 历史遗留废渣堆治理中的应用.
- Author
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郭智, 刘玉强, 齐长青, 刘胜, and 郑中华
- Subjects
- *
RESTORATION ecology , *SOIL protection , *REINFORCED soils , *ENVIRONMENTAL management , *ENVIRONMENTAL protection , *POLLUTION prevention - Abstract
The treatment of historical waste piles is a difficult and hot topic in environmental protection management workcurrently, especially for waste piles with limited storage sites and steep slopes, the collaborative governance technology of in situ pollution prevention and ecological restoration is one of the challenges in preventing and controlling pollution from historical legacy waste piles. Taking the slag pile control project of a closed mine ecological restoration project as an example, a new type of in situ pollution prevention and ecological restoration technology for historical legacy waste piles has been proposed, so called reinforcement of waste residue pile soil protection horizontal and vertical flexible barriers ecological restoration and management plan, abbreviated as "Reinforced Soil Protection Flexible Barrier Ecological Restoration Technology". This technology uses geotextile bags and grid reinforcement to stabilize the slope of the waste residue pile. HDPE film is set as the main anti seepage barrier layer on the surface of the pile, and geotextile chambers are hung for soil protection and greening* Flexible vertical pollution prevention and control barriers are set up around the waste residue pile to effectively prevent and control the pollution of the waste residue pile to surrounding groundwater and soil in a three dimensional vertical manner. Meanwhile, the surface barrier of the waste heap is made of HDPE film, with a permeability coefficient less than 1 X 10-13 cm/s, the overall permeability coefficient of the flexible vertical barrier walls used around is less than 1 X 10-7 cm/s, the ultimate goal is to achieve the synergy between pollution prevention and ecological greening, achieving a dual effect of in situ pollution control and ecological restoration of waste residue piles. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. Unlocking green growth: an ARDL estimation of pollution prevention practices for economic and environmental sustainability.
- Author
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Amir, Muhammad, Malik, Muhammad Siddique, and Ali, Kamran
- Subjects
SUSTAINABLE development ,SUSTAINABILITY ,POLLUTION prevention ,ECONOMIC conditions in Asia ,GLOBAL warming - Abstract
In today's era, environmental concerns are given equal importance to economic growth to attain sustainability. By implementing economic strategies, we can achieve economic enrichment, while adopting pollution prevention practices can lead to environmental and economic improvements. Therefore, this study examines the impact of pollution prevention practices on the economic and environmental sustainability of nine Asian countries. This study utilizes data from selected economically thriving Asian countries and employs the ARDL approach using EViews v10 for estimation. This study holds great significance for these states, as they are the most vulnerable to global warming and adverse effects of climate change. Furthermore, the findings of this study have policy implications for Asian economies and other developing nations, providing guidelines for governments and policymakers to effectively sustain their environmental resources for both current and future use, while simultaneously boosting their economic and environmental sustainability. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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