【摘要】 为了初步调查南京市空气中颗粒物PM10、PM2.5的污染水平,于2001年冬、春、秋3季在南京市的5个典型城市功能区,用大流量采样器收集了50个样品.结果表明,南京市PM10、PM2.5的污染很严重,超标率分别为72%和92%,最大超标倍数达到6.3和9.0,而且对人体健康危害更大的PM2.5占PM10的大部分,约为68%,应引起公众和相关职能部门的高度重视.更多还原

【Abstract】 For preliminary investigation of pollution levels of airborne particulate matter in Nanjing City, fifty airborne particulate (PM10、PM2.5) samples were collected at five typical functional areas of Nanjing City during the winter, spring and autumn in the year 2001. The results indicate that the pollution by PM10 and PM2.5 is quite serious. The rates exceeding the standards are 72% and 92% for PM10 and PM2.5 respectively with the highest up to 6.3 and 9.0 times of the standards. The PM2.5 fraction, which is more harmful to human health, accounts approximately 68% of the PM10. It should bring to high attention of the public and the related functional sectors.更多还原