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195 results on '"Balducci, Catia"'

9. Mastering Snow Analysis: Enhancing Sampling Techniques and Introducing ACF Extraction Method with Applications in Svalbard.

Author

Cerasa, Marina, Balducci, Catia, Giannelli Moneta, Benedetta, Guerriero, Ettore, Feo, Maria Luisa, Bacaloni, Alessandro, and Mosca, Silvia

Subjects
*PERSISTENT pollutants, *ATMOSPHERE, *ATMOSPHERIC transport, *ALPINE regions, *POLYCHLORINATED biphenyls, *DDT (Insecticide), *ORGANOCHLORINE pesticides
Abstract

Semi-volatile organic contaminants (SVOCs) are known for their tendency to evaporate from source regions and undergo atmospheric transport to distant areas. Cold condensation intensifies dry deposition, particle deposition, and scavenging by snow and rain, allowing SVOCs to move from the atmosphere into terrestrial and aquatic ecosystems in alpine and polar regions. However, no standardized methods exist for the sampling, laboratory processing, and instrumental analysis of persistent organic pollutants (POPs) in snow. The lack of reference methods makes these steps highly variable and prone to errors. This study critically reviews the existing literature to highlight the key challenges in the sampling phase, aiming to develop a reliable, consistent, and easily reproducible technique. The goal is to simplify this crucial step of the analysis, allowing data to be shared more effectively through standardized methods, minimizing errors. Additionally, an innovative method for laboratory processing is introduced, which uses activated carbon fibers (ACFs) as adsorbents, streamlining the analysis process. The extraction method is applied to analyze polychlorobiphenyls (PCBs) and chlorinated pesticides (α-HCH, γ-HCH, p,p′-DDE, o,p′-DDT, HCB, and PeCB). The entire procedure, from sampling to instrumental analysis, is subsequently tested on snow samples collected on the Svalbard Islands. To validate the efficiency of the new extraction system, quality control measures based on the EPA methods 1668B and 1699 for aqueous methods are employed. This study presents a new, reliable method that covers both sampling and lab analysis, tailored for detecting POPs in snow. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Occurrence, Sources and Environmental Health Risk Assesement of Polycyclic Aromatic Hydrocarbons in Domestic Effluents Discharges in Wadi El Bey (Tunisia)

Author

Gdara, Imen, Zrafi, Ines, Balducci, Catia, Cecinato, Angelo, Ghrabi, Ahmed, Abdalla, Hassan, Series editor, Abdul Mannan, Md., Series editor, Alalouch, Chaham, Series editor, Attia, Sahar, Series editor, Boemi, Sofia Natalia, Series editor, Bougdah, Hocine, Series editor, Bozonnet, Emmanuel, Series editor, De Bonis, Luciano, Series editor, Hawkes, Dean, Series editor, Kostopoulou, Stella, Series editor, Mahgoub, Yasser, Series editor, Mesbah Elkaffas, Saleh, Series editor, Mohareb, Nabil, Series editor, O. Gawad, Iman, Series editor, Oostra, Mieke, Series editor, Pignatta, Gloria, Series editor, Pisello, Anna Laura, Series editor, Rosso, Federica, Series editor, Kallel, Amjad, editor, Ksibi, Mohamed, editor, Ben Dhia, Hamed, editor, and Khélifi, Nabil, editor

Published
2018
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43. n-Alkanes and Polycyclic Aromatic Hydrocarbons in Deposition Dust and PM10 of Interiors in Touggourt Region, Algeria.

Author

Gheriani, Abdennour, Boudehane, Aicha, Lounas, Ali, Balducci, Catia, Cecinato, Angelo, and Khadraoui, Abbas

Subjects
POLYCYCLIC aromatic compounds, MINERAL dusts, POLYCYCLIC aromatic hydrocarbons, POLLUTANTS, DUST, COFFEEHOUSES, INFORMATION resources, WAREHOUSES
Abstract

The occurrence of pollutants in environment displays its maximum impact on human health and on the global "quality" of life in the places where humans spend most of their time, i.e., indoors. A field study was undertaken in the region of Touggourt, Algeria. The goal was that of obtaining information on the main sources of indoor pollutant emissions (n-alkanes and polycyclic aromatic compounds) associated with deposition dusts (DDs) and suspended particulates (PM10). A multi-service clinic, two schools, a coffee bar, three houses, and an asphalt distribution center were investigated. Forty-five samples in total were collected, including 31 deposition dusts and 14 airborne particulates. That would improve the current understanding of pollution features in central Algeria reached through previous investigations in the Touggourt region. Capillary gas chromatography coupled with mass spectrometric detection was adopted to determine the concentrations of n-alkanes and PAHs. In deposition dust, total n-alkanes (TNAs) ranged between 37 and 794 ng/(m2 day) in the summer and 33–1,724 ng/(m2 day) in the fall. Meanwhile, TNAs loads in the PM10 samples ranged between 778 and 2,024 ng/m3. According to Carbon Preference Index (CPI), Cmax, and wax n-alkanes (WaxCn) approaches, both DD and PM10 were released overall by anthropogenic sources, though the contribution of natural emissions could not be neglected. Total polycyclic aromatic hydrocarbons (TPAHs) associated with DD ranged from 4.4 ng/(m2 day) to 127 ng/(m2 day) during the summer period, and 2.0–224 ng/(m2 day) in the fall; TPAHs' concentrations in PM10 ranged between 40 ng/m3 and 984 ng/m3. Preliminary information about the sources of PAHs was drawn by calculating the concentration ratios between diagnostic pairs (DRs) of PAHs. According to PAH DR values, the pollution sources influenced at distinct extents all of the sites and locations investigated. Anyway, the PAH occurrence was associated with petrogenic sources, with the prevalence of gasoline fuel cars, at most sites. A wide variability was also observed by comparing the concentrations of pollutants observed in the summer and in the fall. This was in agreement with the results of n-alkanes emissions. [ABSTRACT FROM AUTHOR]

Published
2022
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