三峡大学学报（自然科学版）Issue(4)：105-108,112,5.DOI:10.13393/j.cnki.issn.1672-948X.2014.04.023
宜昌市城区PM2.5污染形成灰霾天气的规律研究
Discussion on Haze Formation of PM2.5 Pollution in Urban Area of Yichang
摘要
Abstract
In 2012,an ambient air quality monitoring site was selected for the investigative PM2.5 monitoring , nearby the meteorological station and 23 metres from the ground.The mean annual PM2.5 concentration was between 19 and 284μg/m3 .The highest monthly average concentration was in March.It was systematically analyzed for the relationship between the PM2.5 monitoring concentration and haze,visibility observation da-ta.The results showed that:the PM2.5 pollution concentration was not strongly correlated with the haze ob-servation value but significantly related to the visibility observation data.The reduced visibility affected by PM2.5 pollution has seasonal the whole year around.February,May and June as a group,July,August and September as a group ,April,October and November as a group,the regression curve between visibility and PM2.5 concentration are basically the same in every group.Throughout the year,effect of PM2.5 concentration on visibility was in March,the largest,minimum in January,mainly related to air temperature,wind speed, rainfall factors.关键词
灰霾/PM2.5/能见度Key words
haze/PM2.5/visibility分类
资源环境引用本文复制引用
张兆年,饶少林,曾艳芹,罗剑琴..宜昌市城区PM2.5污染形成灰霾天气的规律研究[J].三峡大学学报（自然科学版）,2014,(4):105-108,112,5.基金项目
宜昌市科技局支撑计划项目(A13-132) （A13-132）
