环境空气中颗粒物及重金属污染特征分析  

Analysis of Pollution Characters of Particulates and Heavy Elements in Ambient Air

作　　者：王晓利[1] 董云峰[1] 陈巍[1] 龙庆云[1] 杨品[1] 

机构地区：[1]中国船舶重工集团公司第七一八研究所,河北邯郸056027

出　　处：《舰船防化》2013年第3期11-14,共4页

摘　　要：通过采集环境空气中的颗粒物样品，采用重量法测定PM10和PM2．5，用石墨炉原子吸收法测定其中的重金属铅、镉和砷的含量。分析结果显示，PM10的24h平均浓度范围为38．6μg／m^3～321μg／m^3，PM2．5的24h平均浓度范围为24．5gg／m^3～222gg／m^3，部分测定值不能满足《环境空气质量标准》中二级标准，雾霾天气下超标严重；三种重金属元素在PM10和PM2．5中均有检出，在PM2．5中含量相对较高。This paper determined PM10 and PM2.5 by gravimetric method, and determined elements of Pb, Cd and As by using graphite furnace atomic absorption spectrometry （GFAAS） method, by gathering the samples of particulates in ambient air. The analysis results showed that the average 24-hour concentrations of PM10 was 38.6-321μg/m3 and PM2.5 was 24.5-222μg/m3, not exceeding the second standard of the Ambient Air Quality Standards, and overstepped standards badly when the air is full of frog and haze. The components of three heavy elements were detected in PM 10 and PM2.5, and were higher in PM2.5.

关 键 词：PM10 PM2 5 铅 镉 砷 石墨炉原子吸收法 

分 类 号：X511[环境科学与工程—环境工程]