砷
地下水
危害
地下水砷污染
环境科学
环境危害
自然(考古学)
含水层
水资源管理
污染
受污染的地下水
地理
地质学
生态学
化学
环境修复
生物
考古
岩土工程
有机化学
作者
Joel Podgorski,Michael Berg
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2020-05-21
卷期号:368 (6493): 845-850
被引量:942
标识
DOI:10.1126/science.aba1510
摘要
Dowsing for danger Arsenic is a metabolic poison that is present in minute quantities in most rock materials and, under certain natural conditions, can accumulate in aquifers and cause adverse health effects. Podgorski and Berg used measurements of arsenic in groundwater from ∼80 previous studies to train a machine-learning model with globally continuous predictor variables, including climate, soil, and topography (see the Perspective by Zheng). The output global map reveals the potential for hazard from arsenic contamination in groundwater, even in many places where there are sparse or no reported measurements. The highest-risk regions include areas of southern and central Asia and South America. Understanding arsenic hazard is especially essential in areas facing current or future water insecurity. Science , this issue p. 845 ; see also p. 818
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