Exploring the Occurrence and Temporal Variation of ToxCast Chemicals in Fine Particulate Matter Using Suspect Screening Strategy

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Exploring the Occurrence and Temporal Variation of ToxCast Chemicals in Fine Particulate Matter Using Suspect Screening Strategy
	Lin, Yongfeng ; Yang, Jing ; Fu, Qiang ; Ruan, Ting ; Jiang, Guibin
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2019-05-21
卷号	53 期号:10 页码:5687-5696
ISSN号	0013-936X
英文摘要	Existence of emerging contaminants in the environment is of great importance for health risk assessment. The consensus on categories and numbers of the emerging contaminants in airborne fine particulate matter (PM2.5) is still extremely deficient. In this study, an in-house data set was constructed containing 890 unique ToxCast (Phase I and Phase II) chemicals. Occurrence and temporal variation of the chemicals was investigated by a suspect screening workflow in 60 PM2.5 samples from January to December of 2016 in Beijing. Eighty-nine compounds were identified in 12 substance categories, which covered a broad range of physicochemical properties. Quantification/semiquantification results showed that phthalates, phenols, and carboxylic esters were the three most predominant categories, with mean concentrations of 7.82, 4.42, and 4.11 ng/m(3), respectively. Four diverse temporal variation patterns were discerned, which could be explained by correlations of chemical concentrations (or instrumental responses) with meteorological parameters. An extended retrospective suspect screening was also performed to reveal the presence of several analogues of the identified chemicals that were not included in the data set. Another 75 pollutants were tentatively recognized, and comparison of estimated composition profiles based on instrumental responses suggested the identified ToxCast chemicals are a notable subset of typical emerging contaminants. The results might facilitate ranking of organic pollutants with active biological effects in PM2.5 samples.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/42945]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
作者单位	1.China Natl Environm Monitoring Ctr, State Environm Protect Key Lab Qual Control Envir, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lin, Yongfeng,Yang, Jing,Fu, Qiang,et al. Exploring the Occurrence and Temporal Variation of ToxCast Chemicals in Fine Particulate Matter Using Suspect Screening Strategy[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(10):5687-5696.
APA	Lin, Yongfeng,Yang, Jing,Fu, Qiang,Ruan, Ting,&Jiang, Guibin.(2019).Exploring the Occurrence and Temporal Variation of ToxCast Chemicals in Fine Particulate Matter Using Suspect Screening Strategy.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(10),5687-5696.
MLA	Lin, Yongfeng,et al."Exploring the Occurrence and Temporal Variation of ToxCast Chemicals in Fine Particulate Matter Using Suspect Screening Strategy".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.10(2019):5687-5696.