摘要
为准确掌握重庆市东南部区域城区大气环境中PM_(2.5)的污染特征,选择2017年1月1日至2017年12月31日大气自动监测数据进行分析研究,结果表明:重庆市东南部地区域中黔江区、武隆县、彭水县、石柱县、酉阳县和秀山县城区大气环境年度平均值分别为36μg/m^3、35μg/m^3、31μg/m^3、36μg/m^3、34μg/m^3、39μg/m^3。PM_(2.5)与PM_(10)直线对散点的拟合率相对较高,呈现显著性正相关,PM_(2.5)在PM_(10)中的占比高,两者可能有相类似或者相同来源。聚类分析结果表明,研究区域大气环境中受NO_x和PM_(2.5)污染较大,PM_(10)与PM_(2.5)聚类距离相近,污染程度相互影响。Arc GIS软件中的空间分析结果表明,研究区域大气环境中PM_(2.5)质量浓度,春季与冬季、夏季与秋季的变化规律极其相似。
Based on the real-time monitoring data from January 1,2017 to December 30,2017,the observed PM2.5 concentration data were analyzed in the atmospheric environment of the regional urban area of southeastern Chongqing. The results show that the annual average atmospheric environment of PM2.5 in Qianjiang,Wulong,Pengshui,Shizhu,Youyang,Xiushan County in the southeast region of Chongqing is 36,35,31,36,34,34,39 μg/m3,respectively. The linear correlation between PM2.5 and PM10 was obtained. The results were significantly positive correlated,and both may have similar or same sources. The results of spatial analysis in the Arc GIS software show that PM2.5 mass concentration in the atmospheric environment varied similarly in spring and winter,summer and autumn.
作者
幸梅
高煜歆
汪小艳
XIN Mei;GAO Yuxin;WANG Xiaoyan(Ecological and Environmental Monitoring Center of Chongqing,Chongqing 401147,China;Chongqing New World Environment Detection Technology Co.,Ltd.,Chongqing 401121,China)
出处
《环境影响评价》
2018年第4期62-67,共6页
Environmental Impact Assessment
基金
重庆市基础科学与前沿技术研究项目(cstc2015jcyj A0002)
重庆市环境保护局科技项目(环科字2015CF第101号)
关键词
PM2.5
时空特征
相关性分析
聚类分析
PM2.5
spatial-temporal characteristics
correlation analysis
factor clustering analysis
