Groundwater Arsenic Contamination Throughout China
Luis Rodríguez-Lado,Guifan Sun,Michael Berg,Qiang Zhang,Hanbin Xue,Quanmei Zheng,C. Annette Johnson +6 more
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TLDR
A statistical risk model is developed that classifies safe and unsafe areas with respect to geogenic arsenic contamination in China, using the threshold of 10 micrograms per liter, the World Health Organization guideline and current Chinese standard for drinking water.Abstract:
Arsenic-contaminated groundwater used for drinking in China is a health threat that was first recognized in the 1960s. However, because of the sheer size of the country, millions of groundwater wells remain to be tested in order to determine the magnitude of the problem. We developed a statistical risk model that classifies safe and unsafe areas with respect to geogenic arsenic contamination in China, using the threshold of 10 micrograms per liter, the World Health Organization guideline and current Chinese standard for drinking water. We estimate that 19.6 million people are at risk of being affected by the consumption of arsenic-contaminated groundwater. Although the results must be confirmed with additional field measurements, our risk model identifies numerous arsenic-affected areas and highlights the potential magnitude of this health threat in China.read more
Citations
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Journal ArticleDOI
Global threat of arsenic in groundwater
TL;DR: A global model for predicting groundwater arsenic levels suggests that 94 million to 220 million people are potentially exposed to high arsenic concentrations in groundwater, the vast majority of which are in Asia.
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Arsenic contamination of groundwater: A global synopsis with focus on the Indian Peninsula
TL;DR: In this paper, an overview of the current scenario of arsenic contamination of groundwater in various countries across the globe with an emphasis on the Indian Peninsula is presented and the corrective measures available include removing arsenic from groundwater using filters, exploring deeper or alternative aquifers, treatment of the aquifer itself, dilution method by artificial recharge to groundwater, conjunctive use and installation of nano-filter, among other procedures.
Journal ArticleDOI
Arsenic and selenium toxicity and their interactive effects in humans
TL;DR: It is hypothesized that at low concentration, Se can decrease As toxicity via excretion of As-Se compound [(GS3)2AsSe](-), but at high concentration, excessive Se can enhance As toxicity by reacting with S-adenosylmethionine and glutathione, and modifying the structure and activity of arsenite methyltransferase.
Journal ArticleDOI
A review of high arsenic groundwater in Mainland and Taiwan, China: Distribution, characteristics and geochemical processes
TL;DR: The contribution of competitive desorption to high As concentrations is still unknown and remains to be discovered, relative to reductive dissolution of Fe oxides, especially in the inland basins as mentioned in this paper.
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Applications of water-stable metal-organic frameworks in the removal of water pollutants: A review.
Shu Zhang,Jiaqi Wang,Yue Zhang,Junzhou Ma,Lintianyang Huang,Shujun Yu,Lan Chen,Gang Song,Muqing Qiu,Xiangxue Wang,Xiangxue Wang +10 more
TL;DR: In this article, the authors comprehensively review state-of-the-art research progress on the promising potential of metal-organic frameworks (MOFs) as excellent nanomaterials to remove contaminants from the water environment.
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