Evaluating a Tap Water Contamination Incident Attributed to Oil   Contamination by Nontargeted Screening Strategies

doi:10.1021/acs.est.5b05755

CORC > 北京大学 > 城市与环境学院

	Evaluating a Tap Water Contamination Incident Attributed to Oil Contamination by Nontargeted Screening Strategies
	Wang, Beili ; Wan, Yi ; Zheng, Guomao ; Hu, Jianying
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2016
关键词	CHROMATOGRAPHY-MASS SPECTROMETRY NAPHTHENIC ACID MIXTURES UPLC-QTOF-MS/MS GAS-CHROMATOGRAPHY HIGH-RESOLUTION WASTE-WATER COASTAL SEDIMENTS CRUDE-OIL SPILL IDENTIFICATION
DOI	10.1021/acs.est.5b05755
英文摘要	The present study applied nontargeted screening techniques as a novel approach to evaluate the tap water samples collected during the "4.11" tap water pollution incident occurred on April 11, 2014 in Lanzhou in west China. Multivariate analysis (PCA and OPLS-DA) of about 3000 chemical features obtained in extracts of tap water samples by ultrahigh-pressure liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS) analysis showed significantly different chemical profiles in tap water from pollution regions versus reference regions during the event. These different chemical profiles in samples from different regions were not observed in samples collected during the nonpollution period. The compounds responsible for the differences in profiles between regions were identified as naphthenic acids (NAs) and oxidized NAs (oxy-NAs) after the sample extracts underwent bromination to explore saturations, dansylation to identify hydroxylations and corresponding MS/MS mode analysis. A consistent finding was further observed in the targeted analysis of NA mixtures, demonstrating that the Lanzhou "4.11" tap water pollution incident could be attributed to oil spill pollution, and NA mixtures would be a marker for oil contamination. Such evaluations can help to rapidly discriminate pollution sources in accidental pollution events and contribute to regular water monitoring management of water safety issues.; National Natural Science Foundation of China [21177003, 21422701]; National Basic Research Program of China [2015CB458900]; SCI(E); EI; PubMed; ARTICLE; wany@urban.pku.edu.cn; 6; 2956-2963; 50
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/434997]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Wang, Beili,Wan, Yi,Zheng, Guomao,et al. Evaluating a Tap Water Contamination Incident Attributed to Oil Contamination by Nontargeted Screening Strategies[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2016.
APA	Wang, Beili,Wan, Yi,Zheng, Guomao,&Hu, Jianying.(2016).Evaluating a Tap Water Contamination Incident Attributed to Oil Contamination by Nontargeted Screening Strategies.ENVIRONMENTAL SCIENCE & TECHNOLOGY.
MLA	Wang, Beili,et al."Evaluating a Tap Water Contamination Incident Attributed to Oil Contamination by Nontargeted Screening Strategies".ENVIRONMENTAL SCIENCE & TECHNOLOGY (2016).