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Environ Pollut

Title:		"Characteristics, sources and health risk assessment of airborne particulate PAHs in Chinese cities: A review"
Author(s):		Yan D; Wu S; Zhou S; Tong G; Li F; Wang Y; Li B;
Address:		"School of Geography and Ocean Science, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, 210023, China. Institute of Land and Urban-Rural Development, Zhejiang University of Finance & Economics, 18 Xueyuan Road, Hangzhou, Zhejiang, 310018, China. Electronic address: shaohua@zufe.edu.cn. School of Geography and Ocean Science, Nanjing University, 163 Xianlin Road, Nanjing, Jiangsu, 210023, China. Electronic address: shaohuawu@126.com"
Journal Title:		Environ Pollut
Year:		2019
Volume:		20190227
Issue:
Page Number:		804 - 814
DOI:		10.1016/j.envpol.2019.02.068
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"Polycyclic aromatic hydrocarbons (PAHs) are organic compounds composed of at least two benzene rings. This paper reviews the characteristics, sources and health risk of airborne particulate PAHs in Chinese cities. The airborne particulate PAH concentrations varied from 3.35 to 910?ª+ng?ª+m(-3), with an average of 75.0?ª+ng?ª+m(-3), and the pollution level of PAHs in northern cities was generally higher than that in southern cities. The PAH concentrations in different cities underwent similar seasonal variations, with high concentrations in the winter and relatively low concentrations in the summer. Many factors, such as meteorological conditions and source emissions, influenced the spatiotemporal pattern of PAHs. High temperatures, frequent flow exchanges, abundant rainfall and strong solar radiation reduced the level of particulate PAHs in the atmosphere. The historical changes in the level of airborne particulate PAHs in four cities were analyzed. The PAH concentrations in Beijing and Taiyuan presented a trend of first increasing and then decreasing, while the level of particulate PAHs in Nanjing and Guangzhou had a decreasing tendency from year 2000-2015. The airborne particulate PAHs in cities were derived from several sources, including coal combustion, vehicle emissions, coking industries, biomass burning and petroleum volatilization. The results of a health risk assessment indicated that the incremental lifetime cancer risk (ILCR) for people in the northern cities was higher than that for people in the other regions, especially during the cold season. Moreover, adults were at greater risk than people in other age groups, and the health risk to females was slightly higher than that to males. The potential risk of airborne particulate PAH exposure was relatively high in some cities, and controlling PAH emissions at the source should be required to prevent pollution"
Keywords:		Adult Air Pollutants/*analysis China Cities Coal/analysis Environmental Monitoring/*methods Humans Industry Particulate Matter/*analysis Polycyclic Aromatic Hydrocarbons/*analysis Risk Assessment Seasons Vehicle Emissions/analysis Atmosphere Characteristi;
Notes:		"MedlineYan, Daohao Wu, Shaohua Zhou, Shenglu Tong, Guijie Li, Fufu Wang, Yuanmin Li, Baojie eng Review England 2019/03/10 Environ Pollut. 2019 May; 248:804-814. doi: 10.1016/j.envpol.2019.02.068. Epub 2019 Feb 27"