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

作　　者：葛晓立[1] 谢文明[2] 罗松光[1] 李奇[1] 张光弟[3] 

机构地区：[1]国家地质实验测试中心,北京100037 [2]吉林农业大学资源与环境学院,吉林长春130118 [3]中国地质科学院矿产资源研究所,北京100037

出　　处：《岩矿测试》2004年第2期132-136,共5页Rock and Mineral Analysis

基　　金：科技部重点社会公益研究专项资金项目(2001DIA10021)

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。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 results show that there are obvious differences in PAHs content in soils between Miyun and Fangshan area. The total PAHs concentrations are in a range from 45.98 ng/g to 388.23 ng/g.It also indicates that the PAHs in the soils are closely related to the industrial activities. Depending on the distribution characteristics of PAHs, the incomplete pyrolysis of the fossil fuel may be the dominant source of PAHs pollution in the study area.

关 键 词：多环芳烃 分布 土壤 北京 特征参数 

分 类 号：O625.15[理学—有机化学] X131.3[理学—化学]