Characteristics of perfluoroalkyl acids in atmospheric PM10 from the coastal cities of the Bohai and Yellow Seas, Northern China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Characteristics of perfluoroalkyl acids in atmospheric PM10 from the coastal cities of the Bohai and Yellow Seas, Northern China
	Yu, ShuangYu; Liu, WeiJian; Xu, YunSong; Zhao, YongZhi; Wang, Pei; Wang, Xin; Li, XinYue; Cai, ChuanYang; Liu, Yang; Xiong, GuanNan
刊名	ENVIRONMENTAL POLLUTION
	2018-01-12
卷号	243 页码:1894-1903
关键词	PM10 Coastal city in northern China PFAAs Spatial distribution Compositional profile Seasonal variation
ISSN号	0269-7491
文献子类	Article
英文摘要	The concentration distributions, compositional profiles and seasonal variations of 17 perfluoroalkyl acids (PFAAs) in PM10 (particles with aerodynamic diameters < 10 mu m) were determined in seven coastal cities of the Bohai and Yellow Seas. The detection rates of perfluorooctanoic acid (PFOA) and short-chain components (perfluoroalkyl carboxylic acids (PFCAs) with <= 7 carbon atoms and perfluoroalkane sulfonic acids (PFSAs) with <= 5 carbon atoms) were much higher than those of other long-chain PFAA species. The annual average concentration of total PFAAs in PM10 ranged from 23.6 pg/m(3) to 94.5 pg/m(3) for the sampling cities. The monthly mean concentrations of PFAAs in PM10 in some sampling cities reached a peak value in winter, while no significant seasonal differences presented in other cities. High concentrations of PFAAs in the northern cities generally occurred during the local heating period (from November to March). Generally, the dominant components of PFAAs were PFOA and perfiuorobutyric acid (PFBA). Some significantly positive correlations (p <0.01) between the 10 dominant components were revealed in the sampling cities, which implied similar sources and fate behaviors. Based on the simulated 72-hr backward trajectory tracking of air masses, the clustering results demonstrated the sampling cities were affected mainly by the atmospheric transport in sequence from the northwest, the southwest and the open seas, and many transport trajectories of air masses passed by the local fluorine chemical manufacturers in Liaoning, Shandong, Jiangsu, and Hubei Provinces. The estimated average daily intake (ADI) corresponding to the residents in different age groups indicated insignificant contributions to PFOA and perfluorooctane sulfonate (PFOS) exposures by inhalation of PM10 compared to ingestion by daily diet, while the higher ADI of PFOA than the reported levels for adults should be a concern. The calculated hazard ratios (HR) exhibited low noncancer risks by inhalation exposure to PFOA and PFOS in PMio. (C) 2018 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40489]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Yu, ShuangYu,Liu, WeiJian,Xu, YunSong,et al. Characteristics of perfluoroalkyl acids in atmospheric PM10 from the coastal cities of the Bohai and Yellow Seas, Northern China[J]. ENVIRONMENTAL POLLUTION,2018,243:1894-1903.
APA	Yu, ShuangYu.,Liu, WeiJian.,Xu, YunSong.,Zhao, YongZhi.,Wang, Pei.,...&Liu, WenXin.(2018).Characteristics of perfluoroalkyl acids in atmospheric PM10 from the coastal cities of the Bohai and Yellow Seas, Northern China.ENVIRONMENTAL POLLUTION,243,1894-1903.
MLA	Yu, ShuangYu,et al."Characteristics of perfluoroalkyl acids in atmospheric PM10 from the coastal cities of the Bohai and Yellow Seas, Northern China".ENVIRONMENTAL POLLUTION 243(2018):1894-1903.