唐山市细颗粒物PM_(2.5)污染特征分析  

Analysis of Fine Particulate Matter PM_(2.5) Pollution Characteristics at Tangshan

作　　者：闫顺生[1] 李海花[2] 

机构地区：[1]唐山学院基础教学部,河北唐山063000 [2]唐山学院环境与化学工程系,河北唐山063000

出　　处：《科技视界》2013年第31期54-55,共2页Science & Technology Vision

基　　金：唐山市科技局指导性项目<唐山大气细粒子质量浓度的统计分析研究>(12130203b)

摘　　要：根据2013年1-9月唐山市城市空气质量PM2.5监测资料进行统计分析，表明PM2.5污染具有季节性，冬季污染严重，春夏季较低。PM2.5浓度日变化则呈双峰状态，高峰出现在上午8-9时，次高峰出现在晚上21～22时。地域分布则呈现出越靠近市中心PM2.5浓度越高的特征。PM2.5/PM10的比值为0．606，表明唐山市区空气中细颗粒物PM2.5在PM10中的比重大于粗颗粒物，细颗粒物PM2.5污染严重。It analyzed the automatic monitoring data of PM2.5 in Tangshan from Jan 2013 to September. The results showed that PM2.5 pollution is seasonal, it was polluted seriously in winter and low in In spring and summer. There were 2 peaks of PM2.5 a day, the maxi mum and sub-maximum appeared at 8-9 am and 21-22 pm, The geographical distribution is more close to the city center features the higher concentration of PM2.5. The ratio of PM2.5/PM10 was 0.606, indicating that the fine particulate matter PM2.5 in the proportion of PM10 is greater than the coarse, so the fine particulate matter PM2.5 pollution is serious in Tanshan.

关 键 词：细颗粒物PM2 5 污染 统计分析 唐山 

分 类 号：X513[环境科学与工程—环境工程]