银川市大气细颗粒物(PM_(2.5))污染现状及影响因素分析  

Analysis on the Pollution Status and Influential Factors of PM_(2.5) in Yinchuan

作　　者：杨丽蓉 张欣荣 郭英茹 郑海峰[2] 

机构地区：[1]银川市环境监测站,宁夏银川751100 [2]中国科学院东北地理与农业生态研究所,吉林长春130102

出　　处：《宁夏大学学报（自然科学版）》2015年第3期274-278,共5页Journal of Ningxia University(Natural Science Edition)

基　　金：国家重点基础研究发展计划基金资助项目(2010CB951304)

摘　　要：依据2013年银川市城市环境空气质量大气细颗粒物(PM2.5)的监测数据,对银川市环境空气中PM2.5的污染现状、变化趋势及与气象因子关联性进行了系统分析.结果表明,银川市PM2.5的质量浓度变化呈现明显的采暖季和非采暖季2种典型的季节性特征,非采暖季PM2.5的质量浓度与气压呈显著的正相关,与气温、能见度呈显著的负相关,采暖季PM2.5的质量浓度与风向、相对湿度呈显著的正相关,与风速、气温、能见度呈显著的负相关.According to the monitor data of air fine particles（PM2.5）in Yinchuan in 2013,this article systematically analyzes the pollution status,variation tendency,and its correlation with meteorological factors of PM2.5of Yinchuan＇s ambient air.The result shows that the mass concentration variation of air fine particles（PM2.5）of Yinchuan＇s atmosphere presents distinct 2typical seasonal characteristics：the heating season and non-heating season.The mass concentration of air fine particles（PM2.5）in non-heating season is positively correlated with air pressure remarkably,and outstandingly negatively correlated with air temperature and visibility;The mass concentration of air fine particles（PM2.5）in heating season is clearly positively correlated with wind direction,relative humidity,and negatively correlated with wind speed,air temperature and visibility.

关 键 词：大气细颗粒物(PM2.5) 气象因子 相关性 

分 类 号：X51[环境科学与工程—环境工程]