Arsenic exposure from drinking water and staple food (rice): A field scale study in rural Bengal for assessment of human health risk

Arsenic is a well-known carcinogen with emerging reports showing a range of health outcomes even for low to moderate levels of exposure. This study deals with arsenic exposure and associated increased lifetime cancer risk for populations in arsenic-endemic regions of rural Bengal, where arsenic-safe...

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Main Authors: Bratisha Biswas, Arijit Chakraborty, Debashis Chatterjee, Sreemanta Pramanik, Bhaswati Ganguli, Kunal Kanti Majumdar, Jerome Nriagu, Ketki Y. Kulkarni, Amit Bansiwal, Pawan Labhasetwar, Subhamoy Bhowmick
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Ecotoxicology and Environmental Safety
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0147651321011246
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author Bratisha Biswas
Arijit Chakraborty
Debashis Chatterjee
Sreemanta Pramanik
Bhaswati Ganguli
Kunal Kanti Majumdar
Jerome Nriagu
Ketki Y. Kulkarni
Amit Bansiwal
Pawan Labhasetwar
Subhamoy Bhowmick
author_facet Bratisha Biswas
Arijit Chakraborty
Debashis Chatterjee
Sreemanta Pramanik
Bhaswati Ganguli
Kunal Kanti Majumdar
Jerome Nriagu
Ketki Y. Kulkarni
Amit Bansiwal
Pawan Labhasetwar
Subhamoy Bhowmick
author_sort Bratisha Biswas
collection DOAJ
description Arsenic is a well-known carcinogen with emerging reports showing a range of health outcomes even for low to moderate levels of exposure. This study deals with arsenic exposure and associated increased lifetime cancer risk for populations in arsenic-endemic regions of rural Bengal, where arsenic-safe drinking water is being supplied at present. We found a median total exposure of inorganic arsenic to be 2. 9 μg/Kg BW/day (5th and 95th percentiles were 1.1 μg/Kg BW/day and 7.9 μg/Kg BW/day); with major contribution from cooked rice intake (2.4 µg/Kg BW/day). A significant number of households drank arsenic safe water but used arsenic-rich water for rice cooking. As a result, 67% participants had inorganic arsenic intake above the JEFCA threshold value of 3 μg/Kg BW/day for cancer risk from only rice consumption when arsenic contaminated water was used for cooking (median: 3.5 μg/Kg BW/day) compared to 29% participants that relied on arsenic-free cooking water (median: 1.0 µg/kg BW/day). Arsenic in urine samples of study participants ranged from 31.7 to 520 µg/L and was significantly associated with the arsenic intake (r = 0.76); confirming the preponderance of arsenic exposure from cooked rice. The median arsenic attributable cancer risks from drinking water and cooked rice were estimated to be 2.4 × 10-5 and 2.7 × 10-4 respectively, which further emphasized the importance of arsenic exposure from staple diet. Our results show that any mitigation strategy should include both drinking water and local staple foods in order to minimize the potential health risks of arsenic exposure.
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spelling doaj.art-18f8e3b43dbe419c9a9f392bfadb23462022-12-21T23:17:04ZengElsevierEcotoxicology and Environmental Safety0147-65132021-12-01228113012Arsenic exposure from drinking water and staple food (rice): A field scale study in rural Bengal for assessment of human health riskBratisha Biswas0Arijit Chakraborty1Debashis Chatterjee2Sreemanta Pramanik3Bhaswati Ganguli4Kunal Kanti Majumdar5Jerome Nriagu6Ketki Y. Kulkarni7Amit Bansiwal8Pawan Labhasetwar9Subhamoy Bhowmick10Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, IndiaKolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, IndiaDepartment of Chemistry, University of Kalyani, Kalyani, Nadia, West Bengal 741235, IndiaKolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, IndiaDepartment of Statistics, University of Calcutta, 35 Bullygunge Circular Road, Kolkata, West Bengal 700 019, IndiaDepartment of Community Medicine, KPC Medical College and Hospital, Jadavpur, Kolkata, IndiaDepartment of Environmental Health Sciences, School of Public Health, University of Michigan, 109 Observatory Street, Ann Arbor, MI 48109-2029, USASophisticated Environmental Analytical Facility (SAEF), CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, IndiaSophisticated Environmental Analytical Facility (SAEF), CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, IndiaWater Technology & Management Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, IndiaKolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; Corresponding author at: Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India.Arsenic is a well-known carcinogen with emerging reports showing a range of health outcomes even for low to moderate levels of exposure. This study deals with arsenic exposure and associated increased lifetime cancer risk for populations in arsenic-endemic regions of rural Bengal, where arsenic-safe drinking water is being supplied at present. We found a median total exposure of inorganic arsenic to be 2. 9 μg/Kg BW/day (5th and 95th percentiles were 1.1 μg/Kg BW/day and 7.9 μg/Kg BW/day); with major contribution from cooked rice intake (2.4 µg/Kg BW/day). A significant number of households drank arsenic safe water but used arsenic-rich water for rice cooking. As a result, 67% participants had inorganic arsenic intake above the JEFCA threshold value of 3 μg/Kg BW/day for cancer risk from only rice consumption when arsenic contaminated water was used for cooking (median: 3.5 μg/Kg BW/day) compared to 29% participants that relied on arsenic-free cooking water (median: 1.0 µg/kg BW/day). Arsenic in urine samples of study participants ranged from 31.7 to 520 µg/L and was significantly associated with the arsenic intake (r = 0.76); confirming the preponderance of arsenic exposure from cooked rice. The median arsenic attributable cancer risks from drinking water and cooked rice were estimated to be 2.4 × 10-5 and 2.7 × 10-4 respectively, which further emphasized the importance of arsenic exposure from staple diet. Our results show that any mitigation strategy should include both drinking water and local staple foods in order to minimize the potential health risks of arsenic exposure.http://www.sciencedirect.com/science/article/pii/S0147651321011246ArsenicRiceDrinking waterExposure assessmentCancer risk
spellingShingle Bratisha Biswas
Arijit Chakraborty
Debashis Chatterjee
Sreemanta Pramanik
Bhaswati Ganguli
Kunal Kanti Majumdar
Jerome Nriagu
Ketki Y. Kulkarni
Amit Bansiwal
Pawan Labhasetwar
Subhamoy Bhowmick
Arsenic exposure from drinking water and staple food (rice): A field scale study in rural Bengal for assessment of human health risk
Ecotoxicology and Environmental Safety
Arsenic
Rice
Drinking water
Exposure assessment
Cancer risk
title Arsenic exposure from drinking water and staple food (rice): A field scale study in rural Bengal for assessment of human health risk
title_full Arsenic exposure from drinking water and staple food (rice): A field scale study in rural Bengal for assessment of human health risk
title_fullStr Arsenic exposure from drinking water and staple food (rice): A field scale study in rural Bengal for assessment of human health risk
title_full_unstemmed Arsenic exposure from drinking water and staple food (rice): A field scale study in rural Bengal for assessment of human health risk
title_short Arsenic exposure from drinking water and staple food (rice): A field scale study in rural Bengal for assessment of human health risk
title_sort arsenic exposure from drinking water and staple food rice a field scale study in rural bengal for assessment of human health risk
topic Arsenic
Rice
Drinking water
Exposure assessment
Cancer risk
url http://www.sciencedirect.com/science/article/pii/S0147651321011246
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