Pathirana S, Connell D W, Vowles P D
Faculty of Environmental Sciences, Griffith University, Nathan, Queensland, Australia.
Ecotoxicol Environ Saf. 1994 Aug;28(3):256-69. doi: 10.1006/eesa.1994.1051.
The distribution of PAHs in soil, leaf litter, vegetation, soil fauna, and litter fauna in a roadside environment in Brisbane, Australia, was measured using gas chromatography and gas chromatography coupled with mass spectrometry. Sixteen common environmental PAHs were found to be widely distributed with leaf litter exhibiting the highest concentrations (1254 ng/g total wet wt). The carcinogenic PAHs benzo(a)anthracene, chrysene, benzo(a)pyrene, benzo(e)pyrene, benzo(k)fluoranthene, and indeno(1,2,3-c, d)pyrene constituted about half the total. Lipid content was positively correlated with total PAH content in the soil and leaf litter as was organic carbon content with leaf litter alone. The PAH content of leaf litter, soil, and vegetation declined exponentially with distance from the roadway, soil depth, and vegetation height, respectively. This decline was not related to the physicochemical characteristics of the compounds, suggesting that dispersal occurred as particulates with sorbed PAHs.
采用气相色谱法以及气相色谱-质谱联用技术，对澳大利亚布里斯班某路边环境中土壤、落叶层、植被、土壤动物群和落叶层动物群中的多环芳烃分布情况进行了测定。研究发现，16种常见的环境多环芳烃广泛分布，其中落叶层中的浓度最高（总湿重为1254纳克/克）。致癌多环芳烃苯并(a)蒽、屈、苯并(a)芘、苯并(e)芘、苯并(k)荧蒽和茚并(1,2,3-c,d)芘约占总量的一半。土壤和落叶层中的脂质含量与多环芳烃总含量呈正相关，落叶层中的有机碳含量也呈正相关。落叶层、土壤和植被中的多环芳烃含量分别随离道路的距离、土壤深度和植被高度呈指数下降。这种下降与化合物的物理化学特性无关，这表明多环芳烃是以吸附有污染物的颗粒物形式扩散的。
