北京密云房山地区土壤中多环芳烃的组成与分布特征

Distribution and Composition of Polycyclic Aromatic Hydrocarbons in Soil of Miyun and Fangshan Area, Beijing

摘要: 选择北京城近郊房山与密云地区的土壤进行了多环芳烃的定量分析，同时探讨了多环芳烃在土壤中的分布特征与来源。研究结果显示：密云、房山两地土壤中多环芳烃的含量值具有明显差异，提示了两地工业活动影响强度的不同；各采样区土壤中多环芳烃总量的平均值在45．98～388．23ng／g变化，根据多环芳烃的特征参数可以推测研究区土壤中的多环芳烃主要来自于化石燃料的不完全燃烧。

Abstract: The concentrations of polycyclic aromatic hydrocarbon (PAHs) compounds in soil samples collected from Miyun and Fangshan districts of Beijing were quantitatively analyzed. The distributing characteristics and sources of these compounds were discussed. The