An overview on chronic arsenism via drinking water in PR China

Xia, Yajuan; Li, Jun

doi:10.1016/j.tox.2004.01.016

Cited by 117 publications

(58 citation statements)

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“…This is a water column concentration thought to produce tissue burdens in fish that based on average human consumption would lead to cancer in 1 out of every million individuals. Dissolved metal concentrations in Baiyangdian are more than an order of magnitude higher than the criterion (140 ng/L vs. 8,194 ng/L) for human consumption of fish but considerably lower than contaminated wells in China [Liu et al, 2003;Xia and Liu, 2004]. Moreover, dissolved As concentrations in Baiyangdian are almost 8 times higher than concentrations in Upper Mystic Lake, MA USA [Aurillo et al, 1994;Aurilio et al, 1995;Neff, 1997;Chen and Folt, 2000;Kamman and Engstrom, 2002], a site known to have high levels of As from the nearby Woburn Superfund site.…”

Section: Discussionmentioning

confidence: 84%

“…Toxic forms of arsenic include inorganic species (As 3+ and As 5+ ) as well as monomethylarsenite whereas arsenobetaines which are prevalent in seafood are considered benign [Shaw et al, 2007]. Arsenism is prevalent in areas where levels in water range from 0.05-2.0 mg/L still considerably higher than dissolved concentrations in Baiyangdian [Liu et al, 2003;Xia and Liu, 2004]. A human-health criterion exists in the US for total dissolved arsenic of 18 ng/L (estimated based on water and organism consumption; see below) or 140 ng/l (estimated based only on organism consumption) [USEPA, 1984].…”

Section: Discussionmentioning

confidence: 99%

“…Inputs of sewage and industrial contaminants into waterways in China are increasing with rapid economic development [Liu and Diamond, 2005]. There are major atmospheric emissions of Hg and As due to coal combustion and resulting Hg deposition to land and water surfaces particularly surrounding urban and industrial areas [Finkelman et al, 1999;Xia and Liu, 2004;Pacyna et al, 2006;Wu et al, 2006]. China is the world's largest producer and consumer of coal [Jiang et al, 2006].…”

Section: Introductionmentioning

confidence: 99%

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Mercury and Arsenic Bioaccumulation and Eutrophication in Baiyangdian Lake, China

Chen

Pickhardt

et al. 2007

Water Air Soil Pollut

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Hg and As are widespread contaminants globally and particularly in Asia. We conducted a field study in Baiyangdian Lake, the largest lake in the North China Plain, to investigate bioaccumulation and trophic transfer of potentially toxic metals (total mercury and arsenic) in sites differing in proximity from the major point sources of nutrients and metals. Hg concentrations in fish and As concentrations in water are above critical threshold levels (US Environmental Protection Agency based) considered to pose some risk to humans and wildlife. Hg concentrations in biota are within the range of concentrations in lakes in the Northeast US despite the high levels of Hg emission and deposition in China whereas As concentrations are much higher. Dissolved concentrations of both Hg and As decrease with increasing chlorophyll concentrations suggesting that there is significant uptake of metal from water by algae. These results provide evidence for algal blooms controlling dissolved metal concentrations and potentially mitigating the trophic transfer of Hg to fish. This study also underscores the need for further investigation into this contaminated ecosystem and others like it in China that are an important source of fish and drinking water for consumption by local human populations.

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Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mercury and Arsenic Bioaccumulation and Eutrophication in Baiyangdian Lake, China

Chen

Pickhardt

et al. 2007

Water Air Soil Pollut

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“…Given that for most people in China, arsenic in water is not a major problem (Sun, 2004;Xia and Liu, 2004;Yu et al, 2007), controlling therefore, iAs in rice appears to be an urgent public health issue. Sensitivity analysis also indicated that the ingestion rates of aquatic products and rice and iAs concentration in rice in the South are the most relevant variables (Fig.…”

Section: Discussionmentioning

confidence: 99%

Inorganic arsenic in Chinese food and its cancer risk

Sun

Williams

et al. 2011

Environment International

355

160

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Even moderate arsenic exposure may lead to health problems, and thus quantifying inorganic arsenic (iAs) exposure from food for different population groups in China is essential. By analyzing the data from the China National Nutrition and Health Survey (CNNHS) and collecting reported values of iAs in major food groups, we developed a framework of calculating average iAs daily intake for different regions of China. Based on this framework, cancer risks from iAs in food was deterministically and probabilistically quantified. The article presents estimates for health risk due to the ingestion of food products contaminated with arsenic. Both per individual and for total population estimates were obtained. For the total population, daily iAs intake is around 42 μg day − 1 , and rice is the largest contributor of total iAs intake accounting for about 60%.Incremental lifetime cancer risk from food iAs intake is 106 per 100,000 for adult individuals and the median population cancer risk is 177 per 100,000 varying between regions. Population in the Southern region has a higher cancer risk than that in the Northern region and the total population. Sensitive analysis indicated that cancer slope factor, ingestion rates of rice, aquatic products and iAs concentration in rice were the most relevant variables in the model, as indicated by their higher contribution to variance of the incremental lifetime cancer risk. We conclude that rice may be the largest contributor of iAs through food route for the Chinese people. The population from the South has greater cancer risk than that from the North and the whole population.

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“…It is apparent from the current arsenic research in China that the epidemic area is still expanding. Recent updates on chronic arsenicism in PR China (Xia and Liu, 2004) state that, up to now, chronic arsenicism via drinking-water is found in Taiwan, Xinjiang, Inner Mongolia, Shanxi, Ningxia, Jilin, Qinghai, and Anhui provinces, and in certain suburbs of Beijing. In a long-term survey on 140,150 water samples from hand-tubewells in West Bengal it was found that 48.2% had arsenic concentrations of >10 μg/L (WHO guideline value for drinking water) and 23.9% had >50 μg/L (Mukherjee et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Leaching of arsenic in response to organic matter contamination in groundwater treatment practice

Hassan

Fukushi

Nakajima

et al. 2009

J. of Wat. & Envir. Tech.

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A large number of drinking water treatment units have been installed in many regions adopting the technique of arsenic removal through adsorption and co-precipitation with the naturally occurring iron in groundwater and subsequent sand filtration. This study revealed the consequence of the organic matter inclusion on the arsenic treatment process for drinking water. Laboratory investigation confirmed that the organic contamination in the treatment process impeded the arsenic removal efficiency depending on the types and concentrations of the organic matters. The impact of organic matter contamination on the arsenic removal efficiency was almost immediate and the autoclaved examination showed similar results. Nevertheless, the bioleaching of arsenic, 93 μg/L, from the accumulated sludge in the filter bed was observed under the inoperative condition, for 7 days, of the treatment unit. However, in the control observation (using organic matter plus antibiotic) the effluent arsenic concentration was found to be less than 30 μg/L. The effluent iron concentration in the bioleaching process was not worth mentioning and found to be less than 0.22 mg/L. In this study, the chemical and biological consequences of the organic matter contamination on the arsenic removal practice is elucidated, which might contribute in designing safe options for drinking water.

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An overview on chronic arsenism via drinking water in PR China

Cited by 117 publications

References 0 publications

Mercury and Arsenic Bioaccumulation and Eutrophication in Baiyangdian Lake, China

Mercury and Arsenic Bioaccumulation and Eutrophication in Baiyangdian Lake, China

Inorganic arsenic in Chinese food and its cancer risk

Leaching of arsenic in response to organic matter contamination in groundwater treatment practice

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