State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No.8 DaYangFang AnWai, Beijing 100012, China.
Ecotoxicol Environ Saf. 2012 Oct;84:304-10. doi: 10.1016/j.ecoenv.2012.07.027. Epub 2012 Aug 15.
The profiles and sources of polycyclic aromatic hydrocarbons (PAHs) were analyzed in 227 agricultural surface soils from the Huanghuai plain, China. The total concentrations of 16 PAHs varied from 15.7 to 1247.6 μg/kg, with an average of 129.5 μg/kg. Compared with pollution level and carcinogenic potential risk in other research, the soil PAH concentrations in this study fell within low to middle level. Unexpectedly, a significant correlation was not observed between the PAH concentration in soils and the corresponding content of the soil organic matter. This is partly interpreted for our sampling sites located in agricultural area where fresh input of organic fertilizers is expected. Principal component analysis-multiple linear regression suggests that low temperature combustion, coal combustion and traffic emissions could be the primary PAH contributors in soils from the Huanghuai plain, accounting for 46.7 percent, 42.1 percent and 11.2 percent of PAH concentrations, respectively.
对来自中国黄淮平原的 227 个农业表层土壤中的多环芳烃（PAHs）的分布特征和来源进行了分析。16 种多环芳烃的总浓度范围为 15.7 至 1247.6μg/kg，平均值为 129.5μg/kg。与其他研究中的污染水平和致癌潜在风险相比，本研究中的土壤 PAH 浓度处于低到中等水平。令人意外的是，土壤中 PAH 浓度与相应的土壤有机质含量之间没有观察到显著相关性。这部分可以解释为我们的采样地点位于农业区，预计会有新鲜的有机肥料输入。主成分分析-多元线性回归表明，低温燃烧、煤炭燃烧和交通排放可能是黄淮平原土壤中多环芳烃的主要来源，分别占 PAH 浓度的 46.7%、42.1%和 11.2%。
