YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model
Wen, Xiaohu1,2; Feng, Qi1,2; Lu, Jian3; Wu, Jun4; Wu, Min1,2; Guo, Xiaoyan1,2
Source PublicationHUMAN AND ECOLOGICAL RISK ASSESSMENT
ISSN1080-7039
2018
Volume24Issue:4Pages:1043-1057
KeywordGroundwater Nitrate Pollution Source Identification Dual Nitrate Isotopes Hierarchical Cluster Analysis Stable Isotope Analysis In r Model
MOST Discipline CatalogueBiodiversity Conservation ; Environmental Sciences
DOI10.1080/10807039.2017.1405722
Contribution Rank[Wen, Xiaohu; Feng, Qi; Wu, Min; Guo, Xiaoyan] Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Lanzhou, Gansu, Peoples R China; [Wen, Xiaohu; Feng, Qi; Wu, Min; Guo, Xiaoyan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Gansu, Peoples R China; [Lu, Jian] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Processes & Ecol Remedia, Yantai 264003, Shandong, Peoples R China; [Wu, Jun] Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining, Qinghai, Peoples R China
Department海岸带环境过程实验室
Abstract

Due to the intensive and complicated human activities, the identification of nitrate pollution source of coastal aquifer is usually a challenge. This study firstly adopted stable isotope technique and stable isotope analysis in R (SIAR) model to identify the nitrate sources and contribution proportions of different sources in typical coastal groundwater of northern China. The results showed that about 91.5% of the groundwater samples illustrated significantly high nitrate concentrations exceeding the maximum WHO drinking water standard (50mg/l), reflecting the high risk of groundwater nitrate pollution in the coastal area. A total of 57 sampling sites were classified into three groups according to hierarchical cluster analysis (HCA). The N-15-NO3- and O-18-NO3- values of groundwater samples from Group C (including nine samples) were much higher than those from Group A (including 40 samples) and Group B (including 8 samples). SIAR results showed that NH4+ fertilizer was the dominant nitrate source for groundwater samples of Groups A and B while manure and sewage (M&S) served as dominant source for Group C. This study provided essential information on the high risk and pollution sources of coastal groundwater nitrate of northern China.

Funding OrganizationOne Hundred-Talent Plan of Chinese Academy of Sciences(Y629041021, Y610061033) ; National Natural Science Foundation of China(41671319) ; Two-Hundred Talents Plan of Yantai(Y739011021) ; Research Program of CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation(1189010002)
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordAquifer ; Contamination ; Attenuation ; Pollution ; Water ; Fate ; Area ; Delta-n-15-no3 ; Delta-o-18-no3 ; Transformation
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS IDWOS:000426919700014
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/24025
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorLu, Jian
Affiliation1.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Lanzhou, Gansu, Peoples R China
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Gansu, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Processes & Ecol Remedia, Yantai 264003, Shandong, Peoples R China
4.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining, Qinghai, Peoples R China
Recommended Citation
GB/T 7714
Wen, Xiaohu,Feng, Qi,Lu, Jian,et al. Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model[J]. HUMAN AND ECOLOGICAL RISK ASSESSMENT,2018,24(4):1043-1057.
APA Wen, Xiaohu,Feng, Qi,Lu, Jian,Wu, Jun,Wu, Min,&Guo, Xiaoyan.(2018).Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model.HUMAN AND ECOLOGICAL RISK ASSESSMENT,24(4),1043-1057.
MLA Wen, Xiaohu,et al."Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model".HUMAN AND ECOLOGICAL RISK ASSESSMENT 24.4(2018):1043-1057.
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