Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/65590
Title: Cancer risk from polycyclic aromatic compounds in fine particulate matter generated from household coal combustion in Xuanwei, China
Authors: Lui, KH
Bandowe, BAM
Tian, L
Chan, CS
Cao, JJ
Ning, Z
Lee, SC
Ho, KF
Keywords: Azaarenes
Cancer risk
Coal
Indoor air
Oxygenated PAHs
PAHs
Issue Date: 2017
Publisher: Pergamon Press
Source: Chemosphere, 2017, v. 169, p. 660-668 How to cite?
Journal: Chemosphere 
Abstract: Polycyclic aromatic hydrocarbons (PAHs) and their polar derivatives (oxygenated PAHs: OPAHs and azaarenes: AZAs) were characterized in fine particulates (PM2.5) emitted from indoor coal combustion. Samples were collected in Xuanwei (Yunnan Province), a region in China with a high rate of lung cancer. A sample from the community with the highest mortality contained the highest total concentration of PAHs, OPAHs and AZAs and posed the highest excess cancer risk from a lifetime of inhaling fine particulates. Positive correlations between total carbonyl-OPAHs, total AZAs and total PAHs implied that the emissions were dependent on similar factors, regardless of sample location and type. The calculated cancer risk ranged from 5.23–10.7 × 10−3, which is higher than the national average. The risk in each sample was ∼1–2 orders of magnitude higher than that deemed high risk, suggesting that the safety of these households is in jeopardy. The lack of potency equivalency factors for the PAH derivatives could possibly have underestimated the overall cancer risk.
URI: http://hdl.handle.net/10397/65590
ISSN: 0045-6535
EISSN: 1879-1298
DOI: 10.1016/j.chemosphere.2016.11.112
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