YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Severe Nitrate Pollution and Health Risks of Coastal Aquifer Simultaneously Influenced by Saltwater Intrusion and Intensive Anthropogenic Activities
Jun Wu; Xiaohu Wen
Source PublicationArchives of Environmental Contamination and Toxicology
ISSN0090-4341
2019
Volume77Issue:1Pages:79-87
KeywordGROUNDWATER NITRATE LAND-USE CONTAMINATION SALINIZATION WATER
MOST Discipline CatalogueEnvironmental Sciences ; Toxicology
DOI10.1007/s00244-019-00636-7
Contribution Rank[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
Department海岸带环境过程实验室
AbstractGroundwater 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.
Funding OrganizationNational 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"
SubtypeArticle
Indexed BySCIE
Language英语
WOS KeywordGROUNDWATER NITRATE ; LAND-USE ; CONTAMINATION ; SALINIZATION ; WATER
WOS Research AreaEnvironmental Sciences ; Toxicology
WOS IDWOS:000470275700009
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/24202
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorJun Wu
Recommended Citation
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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