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77 results on '"Mondal, Debapriya"'

51. Wheat is an emerging exposure route for arsenic in Bihar, India

Author

Suman, Sidharth, primary, Sharma, Pushpa Kumari, additional, Siddique, Abu Bakkar, additional, Rahman, Md. Aminur, additional, Kumar, Ranjit, additional, Rahman, Mohammad Mahmudur, additional, Bose, Nupur, additional, Singh, Shatrunjay Kumar, additional, Ghosh, Ashok Kumar, additional, Matthews, Helen, additional, and Mondal, Debapriya, additional

Published
2020
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52. A Model Describing the Neutrosophic Differential Equation and Its Application On Mine Safety.

Author

Mondal, Debapriya, Tudu, Suklal, Roy, Gopal Chandra, and Roy, Tapan Kumar

Subjects
*DIFFERENTIAL equations, *APPROXIMATION theory, *MATHEMATICAL models
Abstract

In the theory of uncertainty and approximation neutrosophy plays a significant role. Neutrosophy is tool emerged on standard or non-standard to measured the mathematical model of uncertainty, vagueness, ambiguity etc. In light of these major issues, the paper outlines of Neutrosophic Set, Single Valued Neutrosophic Set, Triangular Single Valued Neutrosophic Number and Trapezoidal Single Valued Neutrosophic Number. It also propose Neutrosophic Differential Equation and shown its solution in different conditions. Thereafter mining safety model via Single Valued neutrosophic number be epitomized. At last a mathematical experiment is done to exhibit its reality and use fullness of this Number. [ABSTRACT FROM AUTHOR]

Published
2021

53. Breastfeeding: a potential excretion route for mothers and implications for infant exposure to perfluoroalkyl acids

Author

Mondal, Debapriya, Weldon, Rosana Hernandez, Armstrong, Ben G., Gibson, Lorna J., Lopez-Espinosa, Maria-Jose, Shin, Hyeong-Moo, and Fletcher, Tony

Subjects
Organofluorine compounds -- Health aspects, Breast feeding -- Analysis -- Health aspects, Mothers -- Health aspects -- Environmental aspects, Environmental issues, Health
Abstract

BACKGROUND: The presence of perfluoroalkyl acids (PFAAs) in breast milk has been documented, but their lactational transfer has been rarely studied. Determination of the elimination rates of these chemicals during breastfeeding is important and critical for assessing exposure in mothers and infants. OBJECTIVES: We aimed to investigate the association between breastfeeding and maternal serum concentrations of perfluorooctanoic acid (PFOA), perfluorooctane sulfonate (PFOS), perfluorononanoic acid (PFNA), and perfluorohexane sulfonate (PFHxS). For a subset of the population, for whom we also have their infants' measurements, we investigated associations of breastfeeding with infant serum PFAA concentrations. METHODS: The present analysis included 633 women from the C8 Science Panel Study who had a child < 3.5 years of age and who provided blood samples and reported detailed information on breastfeeding at the time of survey. PFAA serum concentrations were available for all mothers and 8% (n = 49) of the infants. Maternal and infant serum concentrations were regressed on duration of breastfeeding. RESULTS: Each month of breastfeeding was associated with lower maternal serum concentrations of PFOA (-3%; 95% CI: -5, -2%), PFOS (-3%; 95% CI: -3, -2%), PFNA (-2%; 95% CI: -2, -1%), and PFHxS (-1%; 95% CI: -2, 0%). The infant PFOA and PFOS serum concentrations were 6% (95% CI: 1, 10%) and 4% (95% CI: 1, 7%) higher per month of breastfeeding. CONCLUSIONS: Breast milk is the optimal food for infants, but is also a PFAA excretion route for lactating mothers and exposure route for nursing infants. CITATION: Mondal D, Weldon RH, Armstrong BG, Gibson LJ, Lopez-Espinosa MJ, Shin HM, Fletcher T. 2014. Breastfeeding: a potential excretion route for mothers and implications for infant exposure to perfluoroalkyl acids. Environ Health Perspect 122:187-192; http://dx.doi. org/10.1289/ehp.1306613, Introduction Breast milk is the natural and optimal food for infants (World Health Organization 2012). The diverse and compelling advantages of breastfeeding for infants, mothers, families, and societies are well [...]

Published
2014

61. Diarrhoeal Health Risks Attributable to Water-Borne-Pathogens in Arsenic-Mitigated Drinking Water in West Bengal are Largely Independent of the Microbiological Quality of the Supplied Water

Author

Mondal, Debapriya, primary, Ganguli, Bhaswati, additional, Roy, Sugata, additional, Halder, Babli, additional, Banerjee, Nilanjana, additional, Banerjee, Mayukh, additional, Samanta, Maitreya, additional, Giri, Ashok, additional, and Polya, David, additional

Published
2014
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66. P-204

Author

Fletcher, Tony, primary, Yucesoy, Berran, additional, Bartell, Scott, additional, Mondal, Debapriya, additional, Fitz-Simon, Nicola, additional, and Luster, Michael, additional

Published
2012
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67. O-101

Author

Weldon, Rosana Hernandez, primary, Hernandez-Weldon, Rosana, additional, Fletcher, Tony, additional, Mondal, Debapriya, additional, Lopez-Espinosa, Maria-Jose, additional, and Eskenazi, Brenda, additional

Published
2012
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76. Status of groundwater arsenic contamination in all 17 blocks of Nadia district in the state of West Bengal, India: A 23-year study report

Author

Bhaskar Das, Subhash Chandra Mukherjee, Kshitish Chandra Saha, Dipankar Chakraborti, Rathindra Nath Dutta, Debapriya Mondal, Sad Ahamed, Mohammad Mahmudur Rahman, M. Amir Hossain, Mrinal Kumar Sengupta, Alok Chandra Samal, Rahman, Mohammad Mahmudur, Mondal, Debapriya, Das, Bhaskar, Sengupta, Mrinal Kumar, Ahamed, Sad, Hossain, M Amir, Samal, Alok Chandra, Saha, Kshitish Chandra, Mukherjee, Subhash Chandra, Dutta, Rathindra Nath, and Chakraborti, Dipankar

Subjects
Veterinary medicine, Groundwater arsenic contamination, business.industry, arsenic, Prevalence, Normal level, arsenical neuropathy, biological samples, arsenical dermatitis, Skin symptoms, Contaminated water, Mining engineering, Study report, groundwater, Medicine, Nadia district, West bengal, Skin lesion, business, Water Science and Technology
Abstract

A comprehensive study was conducted in Nadia, one of the nine arsenic (As) affected districts in West Bengal, India to determine the extent and severity of groundwater As contamination and its health effects in particular, dermatological effects and neurological complications. We collected 28,947 hand tube-well water samples from all 17 blocks of Nadia district and analyzed for As by the flow injection-hydride generation atomic absorption spectrometer (FI-HG-AAS). We found 51.4% and 17.3% of the tube-wells had As above 10 and 50 μg/L, respectively and observed that groundwater of all 17 blocks contained As above 50 μg/L with maximum observed level of 3200 μg/L. Arsenical neuropathy was observed in 33% of 255 arsenicosis patients with 28.2% prevalence for predominant sensory neuropathy and 4.7% for sensorimotor. As groundwater is still the main source of drinking water, targeting low-As aquifers and switching tube-well from unsafe to nearby safe sources are two visible options to obtain safe drinking water. We estimated that about 2.1 million and 0.6 million people could be drinking As contaminated water above 10 and 50 μg/L, respectively, while 0.048 million could be at risk of drinking As-contaminated water above 300 μg/L, the concentration predicted to cause overt arsenical skin lesions. We screened 15,153 villagers from 50 villages and registered 1077 with arsenical skin lesions resulting in a prevalence rate of 7.1%. Analyzing 2671 biological samples (hair, nail and urine), from people with and without arsenical skin symptoms we found 95% of the samples had As above the normal level, indicating many people in Nadia district are sub-clinically affected. Refereed/Peer-reviewed

Published
2014

77. Ineffectiveness and poor reliability of arsenic removal plants in West Bengal, India

Author

Mohammad Mahmudur Rahman, Dilip Lodh, Dipankar Chakraborti, Bhaskar Das, M. Amir Hossain, Mrinal Kumar Sengupta, Bishwajit Nayak, and Amitava Mukherjee, Sad Ahamed, Bimal Roy, Debapriya Mondal, Nayak, Bishwajit, Roy, Bimal K, Mukherjee, Amitava, Chakraborti, Dipankar, Hossain, M Amir, Sengupta, Mrinal Kumar, Ahamed, Sad, Mondal, Debapriya, Lodh, Dilip, and Das, Bhaskar

Subjects
Time Factors, Iron, Environmental engineering, chemistry.chemical_element, India, General Chemistry, Arsenic, Water Purification, Toxicology, Arsenic contamination of groundwater, chemistry, Water Supply, Asian country, Environmental Chemistry, Environmental science, Water treatment, West bengal, Equipment Failure, Water quality, Seasons, Water pollution, Groundwater, Filtration, Water Pollutants, Chemical
Abstract

In the recent past, arsenic contamination in groundwater has emerged as an epidemic in different Asian countries, such as Bangladesh, India, and China. Arsenic removal plants (ARP) are one possible option to provide arsenic-safe drinking water. This paper evaluates the efficiency of ARP projects in removing arsenic and iron from raw groundwater, on the basis of our 2-year-long study covering 18 ARPs from 11 manufacturers, both from home and abroad, installed in an arsenic affected area of West Bengal, India, known as the Technology Park Project (TP project). Immediately after installation of ARPs on August 29, 2001, the villagers began using filtered water for drinking and cooking, even though our first analysis on September 13, 2001 found that 10 of 13 ARPs failed to remove arsenic below the WHO provisional guideline value (10 microg/L), while six plants could not achieve the Indian Standard value (50 microg/L). The highest concentration of arsenic in filtered water was observed to be 364 microg/L. Our 2-year study showed that none of the ARPs could maintain arsenic in filtered water below the WHO provisional guideline value and only two could meet the Indian standard value (50 microg/L) throughout. Standard statistical techniques showed that ARPs from the same manufacturers were not equally efficient. Efficiency of the ARPs was evaluated on the basis of point and interval estimates of the proportion of failure. During the study period almost all the ARPs have undergone minor or major modifications to improve their performance, and after our study, 15 (78%) out of 18 ARPs were no longer in use. In this study, we also analyzed urine samples from villagers in the TP project area and found that 82% of the samples contained arsenic above the normal limit.

Published
2005

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