Abstract:Laboratory analyzed the pollution of the shallow groundwater in an area of Songhua river basin of Jilin section and screening basin characteristics pollutants including organic pollutants: fluorene, anthracene, octachlorobiphenyl, pyrene, benzene and (b) fluoranthene, benzene and (k) fluoranthene, benzo (a) pyrene, indene (1,2,3-cd) pyrene, tetrachlorobiphenyl, pentachlorobiphenyl, nitrobenzene, α-hexachlorocyclohexane, β-hexachlorocyclohexane、γ-hexachlorocyclohexane, heptachlor, p,p'-DDD, dichlorvos, heavy metal pollutants: Cr, Cd, Pb, Hg, a total number of 21. Using US EPA recommended four-step health risk assessment scientifically evaluated Songhua river basin residents by the oral way PAEs health risks. The results showed that the research area groundwater pollutants adult oral exposure to a total dose of 2.79×10-4, the children’s of 5.34×10-5, adult oral exposure dose was 5.23times that of children. Adults and children exposed to oral dose in Cr highest contribution rates were 46.67% and 42.82%, the β-hexachlorocyclohexane followed by were 27.29% and 25.15%. Using the interpolation operation function of Arcgis 9.3software estimate the basin adults and children's health risk and generating health risk map. A decreasing trend could be found in the non-carcinogenic risk from north to south basin crowd, on both sides of the Songhua river was not carcinogenic risk fluctuation was not big, the upstream risk was greater than the downstream; The risk of cancer overall trend was not obvious. Crowd cancer risk was higher than non-cancer risk, adult health risk of water higher than the average US EPA recommended maximum acceptable level of 1.0×10-4, children's health risk level only small area higher than 1.0×10-4.
于云江, 杨彦. 基于GIS的松花江沿岸某区浅层地下水污染特征及人群暴露风险评价[J]. 中国环境科学, 2013, 33(8): 1487-1494.
YU Yun-Jiang, YANG Yan. The pollution characteristics and the crowd exposure risk assessment of shallow groundwater in an area of the Songhua river basin based on the GIS. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(8): 1487-1494.