Document Detail

Residential exposure to drinking water arsenic in Inner Mongolia, China.
MedLine Citation:
PMID:  17448512     Owner:  NLM     Status:  MEDLINE    
In the Ba Men region of Inner Mongolia, China, a high prevalence of chronic arsenism has been reported in earlier studies. A survey of the arsenic contamination among wells from groundwater was conducted to better understand the occurrence of arsenic (As) in drinking water. A total of 14,866 wells (30% of all wells in the region) were analyzed for their arsenic-content. Methods used to detect arsenic were Spectrophotometric methods with DCC-Ag (detection limit, 0.5 microg of As/L); Spot method (detection limit, 10 microg of As/L); and air assisted Colorimetry method (detection limit, 20 microg of As/L). Arsenic-concentrations ranged from below limit of detection to 1200 microg of As/L. Elevated concentrations were related to well depth (10 to 29 m), the date the well was built (peaks from 1980-1990), and geographic location (near mountain range). Over 25,900 individuals utilized wells with drinking water arsenic concentrations above 20 microg of As/L (14,500 above 50 microg of As/L-the current China national standard in drinking water and 2198 above 300 microg of As/L). The presented database of arsenic in wells of the Ba Men region provides a useful tool for planning future water explorations when combined with geological information as well as support for designing upcoming epidemiological studies on the effects of arsenic in drinking water for this region.
Zhixiong Ning; Danelle T Lobdell; Richard K Kwok; Zhiyi Liu; Shiying Zhang; Chenglong Ma; Michael Riediker; Judy L Mumford
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-02-24
Journal Detail:
Title:  Toxicology and applied pharmacology     Volume:  222     ISSN:  0041-008X     ISO Abbreviation:  Toxicol. Appl. Pharmacol.     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-08-10     Completed Date:  2007-09-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0416575     Medline TA:  Toxicol Appl Pharmacol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  351-6     Citation Subset:  IM    
Ba Men Anti-Epidemic Station, Lin He, Inner Mongolia, China.
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MeSH Terms
Arsenic / analysis*
China / epidemiology
Health Planning
Poisons / analysis*
Water Supply / analysis*,  standards
Reg. No./Substance:
0/Poisons; 7440-38-2/Arsenic

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

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