气候变化领域集成服务门户(CCPortal): Risk of groundwater contamination widely underestimated because of fast flow into aquifers

CCPortal

DOI	10.1073/pnas.2024492118
	Risk of groundwater contamination widely underestimated because of fast flow into aquifers
	Hartmann A.; Jasechko S.; Gleeson T.; Wada Y.; Andreo B.; Barbera J.A.; Brielmann H.; Bouchaou L.; Charlier J.-B.; Darling W.G.; Filippini M.; Garvelmann J.; Goldscheider N.; Kralik M.; Kunstmann H.; Ladouche B.; Lange J.; Lucianetti G.; Martin J.F.; Mudarra M.; Sanchez D.; Stumpp C.; Zagana E.; Wagener T.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:20
英文摘要	Groundwater pollution threatens human and ecosystem health in many regions around the globe. Fast flow to the groundwater through focused recharge is known to transmit short-lived pollutants into carbonate aquifers, endangering the quality of groundwaters where one quarter of the world's population lives. However, the large-scale impact of such focused recharge on groundwater quality remains poorly understood. Here, we apply a continentalscale model to quantify the risk of groundwater contamination by degradable pollutants through focused recharge in the carbonate rock regions of Europe, North Africa, and the Middle East. We show that focused recharge is the primary reason for widespread rapid transport of contaminants to the groundwater. Where it occurs, the concentration of pollutants in groundwater recharge that have not yet degraded increases from <1% to around 20 to 50% of their concentrations during infiltration. Assuming realistic application rates, our simulations show that degradable pollutants like glyphosate can exceed their permissible concentrations by 3 to 19 times when reaching the groundwater. Our results are supported by independent estimates of young water fractions at 78 carbonate rock springs over Europe and a dataset of observed glyphosate concentrations in the groundwater. They imply that in times of continuing and increasing industrial and agricultural productivity, focused recharge may result in an underestimated and widespread risk to usable groundwater volumes. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Contamination; Groundwater; Recharge
语种	英语
scopus关键词	carbonic acid; glyphosate; ground water; agricultural procedures; aquifer; Article; concentration (parameter); Europe; groundwater contamination; mathematical model; Middle East; North Africa; priority journal; risk factor; rock; spring; water contamination; water flow; water pollutant
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238564
作者单位	Hydrological Modeling and Water Resources, University of Freiburg, Freiburg, D-79098, Germany; Department of Civil Engineering, University of Bristol, Bristol, BS8 1TR, United Kingdom; Bren School of Environmental Science and Management, University of California Santa Barbara, Santa Barbara, CA 93117, United States; Department of Civil Engineering, School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8P 5C2, Canada; International Institute for Applied Systems Analysis, Laxenburg, A-2361, Austria; Department of Physical Geography, Utrecht University, Utrecht, 3584 CS, Netherlands; Department of Geology and Centre of Hydrogeology, University of Malaga, Malaga, 29071, Spain; Environment Agency Austria, Groundwater Unit, Spittelauer Laende 5, Vienna, A-1090, Austria; Laboratory of Applied Geology and Geo- Environment, Ibn Zohr University, BP 8106, Agadir, Morocco; International Water Research Institute, Mohammed VI Polytechnic University, Ben Guerir, 43150, Morocco; BRGM, University of ...
推荐引用方式 GB/T 7714	Hartmann A.,Jasechko S.,Gleeson T.,et al. Risk of groundwater contamination widely underestimated because of fast flow into aquifers[J],2021,118(20).
APA	Hartmann A..,Jasechko S..,Gleeson T..,Wada Y..,Andreo B..,...&Wagener T..(2021).Risk of groundwater contamination widely underestimated because of fast flow into aquifers.Proceedings of the National Academy of Sciences of the United States of America,118(20).
MLA	Hartmann A.,et al."Risk of groundwater contamination widely underestimated because of fast flow into aquifers".Proceedings of the National Academy of Sciences of the United States of America 118.20(2021).