摘要
提出了一套包括提取、还原、分离及同时测定硝基多环芳烃及多环芳烃的分析方法.通过对北京几个不同功能区所采样品的分析及Ames短期生物实验,进一步肯定北京大气颗粒物中不仅含有致突变物和致癌物多环芳烃,还含有直接致突变物硝基多环芳烃,这两类化合物在大气颗粒物中的含量均呈现“冬高夏低’的规律,它们在商业区,居民区的污染更为严重.
A procedure for simultaneous determination of PAH and NO2-PAH, including extraction, preseparation, reduction and analysis with HPLC, was developed. By using this procedure coupled with Ames assay, it was found that there are not only mutagenic PAH but also direct mutagenic NO2-PAH in airborne particulates from different sampling sites in Beijing. The concentrations of PAH and NO2-PAH are higher in the winter than in the summer and the pollution is more serious in commercial and residential areas than in the other areas.
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1989年第3期308-317,共10页
Acta Scientiae Circumstantiae
基金
国家自然科学基金资助课题
关键词
多环芳烃
硝基
大气
颗粒物
北京
airborne particulates
PAH
nitro-substituted PAH
muta-genicity
Ames test
HPLC.
