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	Severe Nitrate Pollution and Health Risks of Coastal Aquifer Simultaneously Influenced by Saltwater Intrusion and Intensive Anthropogenic Activities
	Jun Wu; Xiaohu Wen
发表期刊	Archives of Environmental Contamination and Toxicology
ISSN	0090-4341
	2019
卷号	77期号:1页码:79-87
关键词	GROUNDWATER NITRATE LAND-USE CONTAMINATION SALINIZATION WATER
研究领域	Environmental Sciences ; Toxicology
DOI	10.1007/s00244-019-00636-7
产权排序	[Wu, Jun; Zhang, Zhenhua] Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Shandong, Peoples R China; [Lu, Jian; Lin, Yichen] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; [Wen, Xiaohu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Gansu, Peoples R China
通讯作者	Lu, Jian(jlu@yic.ac.cn)
作者部门	海岸带环境过程实验室
英文摘要	Groundwater quality is critical for regional sustainability and human well-beings in coastal regions, because groundwater is an important water resource for these areas facing water scarcity. Anthropogenic activities might induce nitrate pollution, whereas saltwater intrusion could decrease coastal groundwater discharge into sea to subsequently cause the persistent accumulation of pollutants in coastal aquifer. Rare information is available on the nitrate pollution of coastal aquifer under simultaneous influences of saltwater intrusion and intensive anthropogenic activities. This study investigated the distribution, pollution, possible sources, and potential health risks of groundwater nitrate of typical coastal aquifer simultaneously influenced by saltwater intrusion and intensive anthropogenic activities. The average/maximal concentration of groundwater nitrate was 173.70/824.80mg/L, indicating the severe accumulation of nitrate in the coastal aquifer. Concentrations of nitrate in coastal groundwater were much higher than those in adjacent seawater. Groundwater salinization did not have significant effects on nitrate distribution. Groundwater in 87.6% of sampling sites was not suitable for drinking based on nitrate evaluation criterion. Anthropogenic activities might induce nitrate pollution in approximately 94.7% of sampling sites. Sources, including sewage and manure, soil nitrogen, and ammonium fertilizers, contributed to groundwater nitrate with concentration >100mg/L in the study area, whereas sewage and manure were the predominant source affecting groundwater nitrate in 97.5% of sampling sites. Groundwater nitrate exerted unacceptable noncancer health risks for infants, children, teenagers, and adults in more than 87.6% of the study area. Infants and children were the most susceptibly influenced by groundwater nitrate. It is urgent to take effective measures for controlling groundwater nitrate pollution in the study area.
文章类型	Article
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41671319] ; One Hundred Talents Program of Chinese Academy of SciencesChinese Academy of Sciences [Y629041021] ; Taishan Scholar Program of Shandong Province [tsqn201812116] ; Two-Hundred Talents Plan of Yantai [Y739011021] ; CAS "Light of West China Program"
收录类别	SCIE
语种	英语
关键词[WOS]	GROUNDWATER NITRATE ; LAND-USE ; CONTAMINATION ; SALINIZATION ; WATER
研究领域[WOS]	Environmental Sciences ; Toxicology
WOS记录号	WOS:000470275700009
引用统计	被引频次：28[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24202
专题	中国科学院海岸带环境过程与生态修复重点实验室
通讯作者	Jun Wu
推荐引用方式 GB/T 7714	Jun Wu,Xiaohu Wen. Severe Nitrate Pollution and Health Risks of Coastal Aquifer Simultaneously Influenced by Saltwater Intrusion and Intensive Anthropogenic Activities[J]. Archives of Environmental Contamination and Toxicology,2019,77(1):79-87.
APA	Jun Wu,&Xiaohu Wen.(2019).Severe Nitrate Pollution and Health Risks of Coastal Aquifer Simultaneously Influenced by Saltwater Intrusion and Intensive Anthropogenic Activities.Archives of Environmental Contamination and Toxicology,77(1),79-87.
MLA	Jun Wu,et al."Severe Nitrate Pollution and Health Risks of Coastal Aquifer Simultaneously Influenced by Saltwater Intrusion and Intensive Anthropogenic Activities".Archives of Environmental Contamination and Toxicology 77.1(2019):79-87.

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