The concentrations, distribution, possible sources and the potential risk of polycyclic aromatic hydrocarbons (PAHs) in surface soils were studied in Kunming University of Science and Technology, situated in Kunming, China. 15 PAHs were analysed in 6 surface soil samples (0-5 cm layer) collected from six types of land uses in the university campus. Meanwhile, the potential sources of PAHs in surface soils have been investigated by PAH composition ratios and isomer ratios. The total concentrations of 15 PAHs ranged from 272.1 to 2,521.6 ng/g (dry weight basis), and different land uses followed the increasing order of teaching area (272.1 ng/g)
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机译：位于中国昆明的昆明科技大学研究了表层土壤中多环芳烃的浓度，分布，可能的来源以及潜在的风险。在从大学校园的六种土地利用中收集的6个表层土壤样本（0-5厘米层）中分析了15种PAH。同时，通过PAH组成比和异构体比研究了表层土壤中PAHs的潜在来源。 15种PAHs的总浓度为272.1至2,521.6 ng / g（以干重计），并且不同的土地利用遵循教学面积的递增顺序（272.1 ng / g）
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