沈阳市大气颗粒物PM2.5污染现状分析
Analysis on Atmospheric Particulate Matter 2.5(PM2.5) Pollution Status in Shenyang
-
摘要: 利用2011年1~4月沈阳市环境空气中PM2.5自动监测资料进行分析,结果表明,冬季1月和2月污染严重,日均值超标率达到50.0%~64.5%。1天中PM2.5有2个峰值,最大值出现在上午8~9时,次之出现在22时,15时浓度最低。冬季PM2.5污染严重的原因是冬季采暖燃煤量大,污染物排放量大,加之气象扩散条件差导致污染严重。Abstract: It analyzed the automatic monitoring data of PM2.5 in Shenyang from Jan 2011 to Apr.The results showed that it was polluted seriously in Jan and Feb,which was 50.0~64.5% beyond the daily mean value.There were 2 peaks of PM2.5 a day, the maxi mum and sub-maximum appeared at 8~9 am and 10 pm,while the minimum at 3pm.The serious pollution in winter was because of large amount of coal burning and pollutants discharge, and the bad condition of atmospheric diffusion.
-
Key words:
- Particulate Matter /
- Particulate Matter 2.5(PM2.5) /
- Pollution Status /
- Shenyang
-
-
点击查看大图
计量
- 文章访问数: 60
- HTML全文浏览数: 60
- PDF下载数: 0
- 施引文献: 0
下载:
