The research on the temporal variability of the internal exposure levels of polycyclic aromatic hydrocarbons in children around the petrochemical enterprise
JIN Meng1,2, WANG Zi1, LI Yu-qing2, PAN Lang2, HE De-chun2, ZHAO Bo2, FENG Hua1
1. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China; 2. South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China
Abstract:In order to study the effect of low molecular weight PAHs air pollution on the internal exposure levels of children, the study selected two groups of children to collect the urine samples in three days. One group (n=80) in polluted area were from an elementary school situated adjacent to a petrochemical enterprises in southern China, and the other group (n=80) in controlled area were from an elementary school situated in unwind area of 15km. The effect of petrochemical enterprises pollution on children internal exposure and the temporal variability of the internal exposure was investigated. The results suggested that:In three days, the geometric mean of the OHPAHs concentrations in children of polluted area were slightly higher than those of controlled area with significant effect (P<0.05), which were 0.04~4.00μg/g and 0.06~5.09μg/g, respectively. The constituent characteristics of OHPAHs were expressed as ΣOHNap > ΣOHPhe > ΣOHFlu > ΣOHPyr, except for that of polluted area on the second day. Significant correlations were exist between all OHPAHs only on the third day of the polluted area (P<0.01, R2=0.74~0.97) and the correlations of OHPAHs in the samples of polluted area were better than those of controlled area. There were significant correlation between 1-OHP and other OHPAHs only on the third day of polluted area (P<0.01, R2=0.82~0.95).
金梦, 王梓, 黎玉清, 潘浪, 贺德春, 赵波, 冯华. 石化企业周边儿童多环芳烃内暴露负荷的时间变异性[J]. 中国环境科学, 2018, 38(5): 1943-1950.
JIN Meng, WANG Zi, LI Yu-qing, PAN Lang, HE De-chun, ZHAO Bo, FENG Hua. The research on the temporal variability of the internal exposure levels of polycyclic aromatic hydrocarbons in children around the petrochemical enterprise. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(5): 1943-1950.
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