Chemical and biological characterization of air particulate matter 2.5, collected from five cities in China.

Autor: Leung PY; Croucher Institute for Environmental Sciences, Partner State Key Laboratory of Environmental and Biological Analysis, Department of Biology, 200 Waterloo Road, Kowloon Tong, Hong Kong Baptist University, Hong Kong, China. Electronic address: becky10851@hotmail.com., Wan HT; Croucher Institute for Environmental Sciences, Partner State Key Laboratory of Environmental and Biological Analysis, Department of Biology, 200 Waterloo Road, Kowloon Tong, Hong Kong Baptist University, Hong Kong, China. Electronic address: wanhinting@gmail.com., Billah MB; Croucher Institute for Environmental Sciences, Partner State Key Laboratory of Environmental and Biological Analysis, Department of Biology, 200 Waterloo Road, Kowloon Tong, Hong Kong Baptist University, Hong Kong, China. Electronic address: bakibillah29@gmail.com., Cao JJ; Key Lab of Aerosol Science & Technology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China. Electronic address: cao@loess.llqg.ac.cn., Ho KF; Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Tai Po Road, Shatin, Hong Kong, China. Electronic address: kfho@cuhk.edu.hk., Wong CKC; Croucher Institute for Environmental Sciences, Partner State Key Laboratory of Environmental and Biological Analysis, Department of Biology, 200 Waterloo Road, Kowloon Tong, Hong Kong Baptist University, Hong Kong, China. Electronic address: ckcwong@hkbu.edu.hk.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2014 Nov; Vol. 194, pp. 188-195. Date of Electronic Publication: 2014 Aug 20.
DOI: 10.1016/j.envpol.2014.07.032
Abstrakt: Fifteen polycyclic aromatic hydrocarbons (PAHs) in PM2.5 samples collected in five different cities (Hong Kong (HK), Guangzhou (GZ), Xiamen (XM), Xi'an (XA) and Beijing (BJ)) in China in the winter 2012-13 [corrected] were analyzed by gas chromatography-mass spectrometry. The biological effects of organic extracts were assayed using the human bronchial epithelial cells BEAS-2B. All sixteen priority PAHs can be found in the PM2.5 samples of XA and BJ, but not in HK, GZ and XM, demonstrating the differential spatial source and distribution of PAHs. Our results showed that the total PAHs ranged from 3.35 to 80.45 ng/m(3) air, leading by BJ, followed by XA, XM, GZ and HK. In the cell culture study, transcript levels of pro-inflammatory cytokine interleukin-6 (IL-6), CYP1A1 and CYP1B1 were found to be induced in the treatment. The cells exposed to extracts from XA and BJ demonstrated significant migratory activities, indicating a sign of increase of tumorigenicity.
(Copyright © 2014 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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