锦州市大气可吸入颗粒物中多环芳烃污染特征研究

为全面了解城市大气可吸入颗粒物污染状况，我们在2004年1、4、7、10四个月份采样四次，分别代表冬、春、夏、秋四个季节，对锦州市进行分季节采样，并对城市空气中可吸入颗粒物（PM10和PM2.5）中关国优先控制的16种多环芳烃（PAHs）进行了定量研究。结果表明，大气PM10和PM2.5中PAHs污染较重，且冬季高于其它季节，PAHs主要富集在PM2.5及以下细小颗粒物中。

Study of Pollution Characteristic of PAHs in PM10in Jinzhou

To understand the pollution of absorbable particulate matter in city, we sampled four times in four months in 2004- 1-4-7- 10, representing winter, spring, summer, autumn four seasons. 16 polycyclie aromatic hydrocarbons （PAHs） of respirable particulate matter （PM10 and PM2.5 ） in urban air, which are controlled at first in the United States, were studied quantitatively. The result showed that concentration of PAHs in PM10and PM2.5 is serious, which is higher in winter than in other seasons, PAHs matter is mainly accumulated in PM2.5 and finer particulates.