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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
2018
发表期刊HUMAN AND ECOLOGICAL RISK ASSESSMENT
卷号24期号:4页码:1043-1057
文章类型Article
摘要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.
关键词Groundwater Nitrate Pollution Source Identification Dual Nitrate Isotopes Hierarchical Cluster Analysis Stable Isotope Analysis In r Model
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]AQUIFER ; CONTAMINATION ; ATTENUATION ; POLLUTION ; WATER ; FATE ; AREA ; DELTA-N-15-NO3 ; DELTA-O-18-NO3 ; TRANSFORMATION
收录类别SCI
语种英语
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目Biodiversity Conservation ; Environmental Sciences
WOS记录号WOS:000426919700014
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6433
专题青海盐湖研究所知识仓储
盐湖地质与环境实验室
作者单位1.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
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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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