摘要
讨论了2003年宁波市颗粒物中多环芳烃浓度水平、分布及来源,结果表明,PM10中PAHS占TSP中总量的83%,PM2.5中的PAHS占TSP总量的54%,颗粒物中多环芳烃主要存在于小于10μm的颗粒中。颗粒物中多环芳烃季节变化特征明显,夏季最低,冬季最高。汽车尾气对PM10中多环芳烃的贡献率达56%,汽车尾气是颗粒物中多环芳烃的主要来源。
The research on the concentration, size distribution, and source of PAHs in particulate in air were conducted in Ningbo in 2003. The results show that PAHs in PM10 and PM25 makes up 83.3% and 54% of that in TSP respectively. PAHs is mainly contained in PM10 . PAHs in particulate varied with seasons. In summer the concentration of PAHs is lowest and in winter it is highest. The exhaust of cars contribute about 56 % to PAHs in particulate.
出处
《中国环境监测》
CAS
CSCD
北大核心
2006年第2期59-61,共3页
Environmental Monitoring in China
