Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 青海盐湖研究所知识仓储

	Risk assessment and source identification of coastal groundwater nitrate in northern China using dual nitrate isotopes combined with Bayesian mixing model
	Wen, Xiaohu 1,2; Feng, Qi 1,2; Lu, Jian 3; Wu, Jun 4; Wu, Min 1,2; Guo, Xiaoyan 1,2
刊名	HUMAN AND ECOLOGICAL RISK ASSESSMENT
	2018
卷号	24 期号:4 页码:1043-1057
关键词	Groundwater Nitrate Pollution Source Identification Dual Nitrate Isotopes Hierarchical Cluster Analysis Stable Isotope Analysis In r Model
文献子类	Article
英文摘要	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.
WOS关键词	AQUIFER ; CONTAMINATION ; ATTENUATION ; POLLUTION ; WATER ; FATE ; AREA ; DELTA-N-15-NO3 ; DELTA-O-18-NO3 ; TRANSFORMATION
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000426919700014
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/6433]
专题	青海盐湖研究所_青海盐湖研究所知识仓储青海盐湖研究所_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
推荐引用方式 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.