安徽省大气颗粒物污染特征分析  

Analysis of atmospheric particulate matter pollution in Anhui

作　　者：易明建 邓淑梅[1] 汪水兵 卫尤文[3] 戴海夏 YI Ming-jian;DENG Shu-mei;WANG Shui-bing;WEI You-wen;DAI Hai-xia(School of Environment and Energy Engineering,Anhui Jianzhu University,Hefei 230601,China;Anhui Provincial Academy of Environmental Sciences,Hefei 230071,China;Department of Biology and Environmental Engineer,Hefei University,Hefei 230601,China;Shanghai Academy of Environmental Sciences,Shanghai 200233,China)

机构地区：[1]安徽建筑大学环境与能源工程学院,安徽合肥230601 [2]安徽省环境科学研究院,安徽合肥230071 [3]合肥学院生物与环境工程系,安徽合肥230601 [4]上海市环境科学研究院,上海200233

出　　处：《地球化学》2021年第1期36-45,共10页Geochimica

基　　金：国家重点基础研究发展计划(2018YFC0213806);安徽省重点研究与开发计划(1804a0802196);国家自然科学基金(211777163);安徽省省级环保科研课题(201702);安徽建筑大学博士启动基金(2019qdz19)。

摘　　要：对2016年全年颗粒物监测浓度数据进行统计分析,得到了安徽省颗粒物污染的空间分布、浓度和粒径,以及污染传输特征。结果表明,淮河以北、沿江和江淮之间、长江以南和皖南山区城市颗粒物污染随地理位置不同表现出明显的区域化特征,污染程度由北向南减轻,污染过程明显表现出由北向南逐步扩散传输的规律,污染程度越重,污染深入南方的范围越广,持续时间也越长。冬季污染较重的城市,上午出现明显的高浓度时段,全天变化为“双峰双谷”型。夏、秋季节夜间细颗粒物(PM2.5)浓度贡献比增加。PM2.5与PM10(可吸入颗粒物)质量浓度比值冬季最高,春季较低。污染重的城市冬季PM2.5占比高。Based on the statistical analysis of particulate matter concentration monitoring data in 2016,the spatial distribution,concentration,and diameter ratio of the particulate matter,as well as its transmission feature in Anhui Province are presented in this study.The results indicate that the characteristics of particulate matter differ in cities among four geographically distinct areas(i.e.,North Anhui,Central Anhui,South Anhui,and southern mountainous area in Anhui).The average concentration level of particulate matter declines from north to south;the progress of pollution also migrates gradually from north to south.The higher the pollution level,the greater the extent of pollution toward the southern area and greater the duration of the pollution increase with the pollution level.In some heavily polluted cities,there is a period with an evident high particulate matter concentration in the morning,leading to a specific“double peak and double valley”pattern for a whole day variation.The contribution of particulate matter at night increases in summer and autumn when compared with the other two seasons.In addition,the diameter ratio of particulate matter is usually the highest in winter and becomes lower in spring;and it is evidently higher in the heavily polluted cities than in others.

关 键 词：大气环境 细颗粒物 统计特征 安徽省 

分 类 号：P593[天文地球—地球化学] X513[天文地球—地质学]