摘要
以PM2.5细颗粒物为主导因素的区域灰霾现象日趋严重,已经对我国公众健康构成巨大威胁,对人们生活产生巨大影响。文章就公众关注的几个方面,做了简要分析,包括PM2.5的危害、化学组分特征、微观形貌、常见来源。还着重以燃煤火电厂为实例,进行了相关演算、分析,指出燃煤火电厂PM2.5的一次排放部分几乎可以忽略不计,但其二次影响部分的贡献值较大,是进一步治理的重点。
The PM2. 5 fine particles is leading factor in regional haze and becoming more and more serious,which has posed a huge threat to public health and has a great impact on people＇s lives in China. Several aspects of the public concern are briefly analyzed,including PM2. 5 damage,the characteristics of the chemical components,microstructure and common sources. This paper also focuses on the coal-fired power plant as an example,the calculation and analysis showed that primary discharge portion of coal-fired power plant PM2. 5 is almost negligible,but the second part contribution value is large,that is the key to be further controlled.
出处
《华北电力技术》
CAS
2014年第5期1-4,共4页
North China Electric Power
关键词
PM2.5
火电厂
一次排放
二次影响
PM2.5
thermal power plant
primary emission
secondary effect
