Abstract:Sixteen priority control polycyclic aromatic hydrocarbons (PAHs) were analyzed in twenty surface soil samples collected from the plinth or aproll edges of the building (B) and 5-meter sites away from the building (B-5), to discuss the impacts of urban buildings on the level and distribution of PAHs from the surrounding soil. The results showed that the concentration of PAHs ranged from 824 to 8960 ng/g in soil at B, with an average of 2649ng/g, PAHs in B-5 varied from 673 PAHs in to 1706ng/g with an average of 1297ng/g which were significantly lower than that of site B. The distribution profile of PAHs was mainly dominated by 4~5ring PAHs in the study area. Fl, Pyr, InP and BghiP in soil were dominant species both at B and B-5and accounted for 48% and 45% of total mass PAHs, respectively. HJ-5, AJ, AJ-5, EB-5and TC-5were in the moderate degree of pollution(600~1000ng/g), and the others were categorized heavily polluted (>1000ng/g) by reference to Maliszewska-Kordybach soil standard. Soil TOC exhibited the trend of enrichment at B relative to at B-5, and there was no clear correlation with PAHs. BaA, Chry, B(b+k)F, BaP, InP, and DahA were major contributor to TEQBaP concentration. The source apportionment showed that soil PAHs at B and B-5are mainly originated from coal, gasoline and diesel combustion, and PAHs at B-5might be partly from oil spill.
于英鹏, 杨毅, 刘敏, 陆敏, 郑鑫, 王欣, 王瑞琪, 刘营, 汪青. 城市建筑物对周围土壤中多环芳烃含量与分布的影响[J]. 中国环境科学, 2014, 34(2): 452-458.
YU Ying-Peng, YANG Yi, LIU Min, LU Min, ZHENG Xin, WANG Xin, WANG Rui-Qi, LIU Ying, WANG Qing. Effects of city buildings on content and distribution of polycyclic aromatic hydrocarbons in adjacent soil. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(2): 452-458.