Document Detail


Arsenic intake via water and food by a population living in an arsenic-affected area of Bangladesh.
MedLine Citation:
PMID:  17481698     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
More and more people in Bangladesh have recently become aware of the risk of drinking arsenic-contaminated groundwater, and have been trying to obtain drinking water from less arsenic-contaminated sources. In this study, arsenic intakes of 18 families living in one block of a rural village in an arsenic-affected district of Bangladesh were evaluated to investigate their actual arsenic intake via food, including from cooking water, and to estimate the contribution of each food category and of drinking water to the total arsenic intake. Water consumption rates were estimated by the self-reporting method. The mean drinking water intake was estimated as about 3 L/d without gender difference. Arsenic intakes from food were evaluated by the duplicate portion sampling method. The duplicated foods from each family were divided into four categories (cooked rice, solid food, cereals for breakfast, and liquid food), and the arsenic concentrations of each food category and of the drinking water were measured. The mean arsenic intake from water and food by all 18 respondents was 0.15 +/-0.11 mg/d (range, 0.043 - 0.49), that by male subjects was 0.18 +/- 0.13 mg/d (n = 12) and that by female subjects was 0.096 +/- 0.007 mg/d (n = 6). The average contributions to the total arsenic intake were, from drinking water, 13%; liquid food, 4.4%; cooked rice, 56%; solid food, 11%; and cereals, 16%. Arsenic intake via drinking water was not high despite the highly contaminated groundwater in the survey area because many families had changed their drinking water sources to less-contaminated ones. Instead, cooked rice contributed most to the daily arsenic intake. Use of contaminated water for cooking by several families was suspected based on comparisons of arsenic concentrations between drinking water and liquid food, and between rice before and after cooking. Detailed investigation suggested that six households used contaminated water for cooking but not drinking, leading to an increase of arsenic intake via arsenic-contaminated cooking water.
Authors:
Koichi Ohno; Tatsuya Yanase; Yuki Matsuo; Tetsuro Kimura; M Hamidur Rahman; Yasumoto Magara; Yoshihiko Matsui
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-05-03
Journal Detail:
Title:  The Science of the total environment     Volume:  381     ISSN:  0048-9697     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-06-05     Completed Date:  2007-09-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  68-76     Citation Subset:  IM    
Affiliation:
Department of Socio-Environmental Engineering, Hokkaido University, N13W8, Sapporo 060-8628, Japan. ohnok@eng.hokudai.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Arsenic / analysis*,  chemistry
Bangladesh
Environmental Monitoring*
Female
Food Contamination / analysis*
Humans
Male
Water / chemistry*
Water Pollutants, Chemical / analysis*
Chemical
Reg. No./Substance:
0/Water Pollutants, Chemical; 7440-38-2/Arsenic; 7732-18-5/Water

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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