Abstract:To assess polycyclic aromatic hydrocarbons(PAHs) exposure, subjects were selected in the area where local residents burn smoky coals in Qujing, Yunnan province. 16 PAHs concentrations of the samples were determined by GC/MS to study status, characteristic and sources of the PAHs. Daily total exposure of local people was analyzed using benzo(a)pyrene (BaP) toxic equivalence factor. Daily intake through food was 0.20μg/d, which was in the range of the data reported by WHO. Daily intake through air was 5.26μg/d, which contributed 96% of the their daily PAHs exposure. Inhalation was the main intake of PAHs. The proportion of the high molecular weight PAHs increased from 3.08% to 49.6% using toxic equivalence factor to assess the carcinogenic risk, while low molecular weight PAHs exhibited much lower toxicity decreased. The daily total exposure to BaP was 5.46μg/d, which was exceeded the limited value 3μg/d. PAHs exposure posed long-term threat to the environment and health of residents.
张霖琳, 吕俊岗, 吴国平, 魏复盛. 云南省曲靖燃煤区人群多环芳烃的日暴露特征研究[J]. 中国环境科学, 2010, 30(10): 1413-1418.
ZHANG Lin-Lin, 吕Jun-Gang , WU Guo-Ping, WEI Fu-Sheng. Characteristic of daily total exposure to polycyclic aromatic hydrocarbons of people living in coal-fired area in Qujing, Yunnan Province. CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(10): 1413-1418.