湖州市不同土地利用类型土壤中多环芳烃的分布及来源

Distribution and Sources of Polycyclic Aromatic Hydrocarbons in Soils of Huzhou City

摘要: 通过对湖州地区74个土壤样品多环芳烃含量的测定,分析了湖州市不同土地利用类型土壤中多环芳烃的含量特征及污染水平。结果表明,湖州市区耕地中多环芳烃的含量最高;从低环/高环比值小于1以及芘/苯并(a)芘比值小于2,反映了湖州地区土壤中多环芳烃主要是由燃煤和生活污染所产生的。

Abstract: A total of 74 surface soil samples were collected and analyzed for polycyclic aromatic hydrocarbons (PAHs) and the contents and pollution levels of 15 PAH compounds in different types of surface soils of Huzhou were studied. Results show that the highest contents of PAHs could be found in Huzhou urban. The ratio of low circle PAHs/high circle PAHs were less than 1, and the ratio of Pyrene/Benzo (a)pyrene were less than 2. This means that the PAHs pollution in Huzhou soils was mainly from the burning coal and domestic pollution.