气候变化领域集成服务门户(CCPortal): Global threat of arsenic in groundwater

CCPortal

DOI	10.1126/science.aba1510
	Global threat of arsenic in groundwater
	Podgorski J.; Berg M.
发表日期	2020
ISSN	0036-8075
起始页码	845
结束页码	850
卷号	368 期号:6493
英文摘要	Naturally occurring arsenic in groundwater affects millions of people worldwide. We created a global prediction map of groundwater arsenic exceeding 10 micrograms per liter using a random forest machine-learning model based on 11 geospatial environmental parameters and more than 50,000 aggregated data points of measured groundwater arsenic concentration. Our global prediction map includes known arsenic-affected areas and previously undocumented areas of concern. By combining the global arsenic prediction model with household groundwater-usage statistics, we estimate that 94 million to 220 million people are potentially exposed to high arsenic concentrations in groundwater, the vast majority (94%) being in Asia. Because groundwater is increasingly used to support growing populations and buffer against water scarcity due to changing climate, this work is important to raise awareness, identify areas for safe wells, and help prioritize testing. © 2020 American Association for the Advancement of Science. All rights reserved.
英文关键词	arsenic; ground water; arsenic; drinking water; ground water; arsenic; concentration (composition); global perspective; groundwater pollution; health impact; pollution exposure; prediction; resource scarcity; Article; controlled study; environmental exposure; evapotranspiration; measurement accuracy; precipitation; predictive value; priority journal; random forest; sand; sensitivity and specificity; soil acidity; temperature; water contamination; water supply; arsenic poisoning; chemistry; climate change; environmental exposure; human; machine learning; theoretical model; Asia; Arsenic; Arsenic Poisoning; Climate Change; Drinking Water; Environmental Exposure; Groundwater; Humans; Machine Learning; Models, Theoretical
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245100
作者单位	Department of Water Resources and Drinking Water, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, 8600, Switzerland; Department of Earth and Environmental Sciences, University of Manchester, Manchester, M13 9PL, United Kingdom; UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development and School of Civil Engineering and Surveying, University of Southern Queensland, Toowoomba, QLD 4350, Australia
推荐引用方式 GB/T 7714	Podgorski J.,Berg M.. Global threat of arsenic in groundwater[J],2020,368(6493).
APA	Podgorski J.,&Berg M..(2020).Global threat of arsenic in groundwater.Science,368(6493).
MLA	Podgorski J.,et al."Global threat of arsenic in groundwater".Science 368.6493(2020).