干旱区生态环境知识资源中心(Arid): Polycyclic aromatic hydrocarbons in atmospheric PM2.5 and PM10 in the semi-arid city of Xi'an, Northwest China: Seasonal variations, sources, health risks, and relationships with meteorological factors

Arid

DOI	10.1016/j.atmosres.2019.06.014
	Polycyclic aromatic hydrocarbons in atmospheric PM2.5 and PM10 in the semi-arid city of Xi'an, Northwest China: Seasonal variations, sources, health risks, and relationships with meteorological factors
	Wang, Lijun; Dong, Shuzhen; Liu, Mengmei; Tao, Wendong; Xiao, Bo; Zhang, Shengwei; Zhang, Panqing; Li, Xiaoping
通讯作者	Wang, LJ (corresponding author), Shaanxi Normal Univ, Dept Environm Sci & Engn, Sch Geog & Tourism, Xian 710119, Peoples R China.
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2019
卷号	229 页码:60-73
英文摘要	Atmospheric particulate matter (PM2.5 and PM10) samples were collected at urban and suburban sites in Xi'an City from December 2016 to November 2017. Sixteen priority polycyclic aromatic hydrocarbons (PAHs) associated with PM2.5 and PM10 were analyzed for their seasonal variations, sources, health risks, and influencing factors. The results showed that the annual average concentrations of PM2.5 and PM10 were 111 and 185 mu g/m(3), respectively, exceeding the National Ambient Air Quality Standard of China (35 mu g/m(3) for PM2.5 and 70 mu g/m(3) for PM10 in Grade II). The annual averages of PM2.5- and PM10-bound total PAHs were 63.1 and 66.8 ng/m(3), respectively, with a PM2.5 decrease in the order of winter (115 ng/m(3)) > > spring (47.6 ng/m(3)) > summer (33.2 ng/m(3)) > autumn (30.8 ng/m(3)) and a PM10 decrease in the order of winter (127 ng/m(3)) > > spring (55.6 ng/m(3)) > autumn (32.6 ng/m(3)) > summer (30.2 ng/m(3)). The most abundant PAHs were benzo[a]anthracene, benzo[b]fluoranthene, and fluoranthene. The PM2.5- and PM10-bound PAHs were originated mainly from traffic emissions (51.0% and 43.4%), followed by combustion of biomass (20.4% and 23.6%) and coal (16.8% and 23.1%). Pressure and relative humidity were positively correlated with PM2.5 and PM10 as well as PM2.5- and PM10-bound PAHs, while temperature, visibility and wind speed had negative correlations. The annual means of TEQs (toxic equivalency quantities) for the 16 PAHs in PM2.5 and PM10 were 10.1 and 10.2 ng/m(3), respectively, being attributed to 7 carcinogenic PAHs (> 95%). The ECRs (lifetime excess cancer risks) for PM2.5- and PM10-bound PAHs were 1.12 x 10(-3) and 1.17 x 10(-3), i.e., 1125 and 1169 lung cancer cases per million, respectively. The ILCRs (incremental lifetime cancer risks) due to PM2.5- and PM10-bound PAHs for adults (1.21 x 10(-6) and 1.26 x 10(-6)) were larger than those for children (2.09 x 10(-7) and 2.17 x 10(-7)), with acceptable carcinogenic risks. The ambient levels of PM and most PM-bound PAHs as well as their TEQs, ECRs and ILCRs exhibited a spatial pattern of the suburban site > the urban site and a seasonality with winter and spring > summer and autumn. The results suggest that it is important to control PM2.5 and PM10 for local air quality improvement and special attention should be paid to PM and PM-bound PAHs in suburban areas, particularly in winter and spring.
英文关键词	Polycyclic aromatic hydrocarbon Particulate matter Source Health risk
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000513173900004
WOS关键词	LUNG-CANCER RISK ; SOURCE APPORTIONMENT ; SOURCE IDENTIFICATION ; SPATIAL-DISTRIBUTION ; OXYGENATED-PAHS ; INHALATION EXPOSURE ; PM2.5-BOUND PAHS ; INDUSTRIAL-CITY ; ORGANIC-MATTER ; STREET DUST
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369329
作者单位	[Wang, Lijun; Dong, Shuzhen; Liu, Mengmei; Zhang, Shengwei; Zhang, Panqing; Li, Xiaoping] Shaanxi Normal Univ, Dept Environm Sci & Engn, Sch Geog & Tourism, Xian 710119, Peoples R China; [Wang, Lijun; Li, Xiaoping] Int Joint Res Ctr Shaanxi Prov Pollutant Exposure, Xian 710119, Peoples R China; [Tao, Wendong] SUNY Syracuse, Coll Environm Sci & Forestry, 1 Forestry Dr, Syracuse, NY 13210 USA; [Xiao, Bo] Xian Meteorol Adm, Xian 710016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lijun,Dong, Shuzhen,Liu, Mengmei,et al. Polycyclic aromatic hydrocarbons in atmospheric PM2.5 and PM10 in the semi-arid city of Xi'an, Northwest China: Seasonal variations, sources, health risks, and relationships with meteorological factors[J],2019,229:60-73.
APA	Wang, Lijun.,Dong, Shuzhen.,Liu, Mengmei.,Tao, Wendong.,Xiao, Bo.,...&Li, Xiaoping.(2019).Polycyclic aromatic hydrocarbons in atmospheric PM2.5 and PM10 in the semi-arid city of Xi'an, Northwest China: Seasonal variations, sources, health risks, and relationships with meteorological factors.ATMOSPHERIC RESEARCH,229,60-73.
MLA	Wang, Lijun,et al."Polycyclic aromatic hydrocarbons in atmospheric PM2.5 and PM10 in the semi-arid city of Xi'an, Northwest China: Seasonal variations, sources, health risks, and relationships with meteorological factors".ATMOSPHERIC RESEARCH 229(2019):60-73.