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DOI	10.1016/j.scitotenv.2024.171186
	Drought impact on pharmaceuticals in surface waters in Europe: Case study for the Rhine and Elbe basins
	Lentz, Mark P.; Graham, Duncan J.; van Vliet, Michelle T. H.
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	922
卷号	922
英文摘要	Hydrological droughts are expected to increase in frequency and severity in many regions due to climate change. Over the last two decades, several droughts occurred in Europe, including the 2018 -drought, which showed major adverse impacts for nature and different sectoral uses (e.g. irrigation, drinking water). While drought impacts on water quantity are well studied, little understanding exists on the impacts on water quality, particularly regarding pharmaceutical concentrations in surface waters. This study investigates the impact of the 2018drought on concentrations of four selected pharmaceuticals (carbamazepine, sulfamethoxazole, diclofenac and metoprolol) in surface waters in Europe, with a major focus on the Elbe and Rhine rivers. Monitoring data were analysed for the period of 2010-2020 to estimate the spatiotemporal patterns of pharmaceuticals and assess the concentration responses in rivers during the 2018 -drought compared to reference years. Our results indicate an overall deterioration in water quality, which can be attributed to the extremely low flow and higher water temperatures (similar to + 1.5 C-degrees and + 2.0 degrees C in Elbe and Rhine, respectively) during the 2018 -drought. Our results show an increase in the concentrations of carbamazepine, sulfamethoxazole, and metoprolol, but reduced concentrations of diclofenac during the 2018 -drought. Significant increases in carbamazepine concentrations (+45 %) were observed at 3/6 monitoring stations in the upstream part of the Elbe, which was mainly attributed to less dilution of chemical loads from wastewater treatment plants under drought conditions. However, reduced diclofenac concentrations could be attributed to increased degradation processes under higher water temperatures (R-2 = 0.60). Moreover, the rainfed-dominated Elbe exhibited more severe water quality deterioration than the snowmelt-dominated Rhine river, as the Elbe's reduction in dilution capacity was larger. Our findings highlight the need to account for the impacts of climate change and associated increases in droughts in water quality management plans, to improve the provision of water of good quality for ecosystems and sectoral needs.
英文关键词	Water quality; Pharmaceuticals; Droughts; Rivers; Elbe; Rhine; Europe
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001208852100001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290945
作者单位	Utrecht University
推荐引用方式 GB/T 7714	Lentz, Mark P.,Graham, Duncan J.,van Vliet, Michelle T. H.. Drought impact on pharmaceuticals in surface waters in Europe: Case study for the Rhine and Elbe basins[J],2024,922.
APA	Lentz, Mark P.,Graham, Duncan J.,&van Vliet, Michelle T. H..(2024).Drought impact on pharmaceuticals in surface waters in Europe: Case study for the Rhine and Elbe basins.SCIENCE OF THE TOTAL ENVIRONMENT,922.
MLA	Lentz, Mark P.,et al."Drought impact on pharmaceuticals in surface waters in Europe: Case study for the Rhine and Elbe basins".SCIENCE OF THE TOTAL ENVIRONMENT 922(2024).