金华市城区冬季环境空气中PM2.5来源解析  

Source apportionment of ambient PM2.5 in urban area of Jinhua City

作　　者：许海亚[1] 郭婷[1] 谢添[1] 于海瀛[1] 白志鹏[2] 王长智[3] 

机构地区：[1]浙江师范大学地理与环境科学学院,浙江金华321004 [2]中国环境科学研究院大气科学研究所,北京100012 [3]浙江省环境保护科学设计研究院,浙江杭州310007

出　　处：《浙江师范大学学报（自然科学版）》2016年第2期227-233,共7页Journal of Zhejiang Normal University:Natural Sciences

基　　金：金华市科学技术研究计划项目(2014-3-031);浙江省科研院所专项科技条件建设(2012F10019)

摘　　要：为研究金华市冬季主城区大气PM2.5的主要来源,于2014年1月分别在金华市环境监测站和浙江师范大学环境监测点同步采集PM2.5样品.分析了无机元素、水溶性离子、有机碳和总碳含量及其分布特征.收集了金华市城区的土壤尘、扬尘、建筑尘3类污染源样品及工业源(煤烟尘、冶金尘)和移动源(机动车尾气)的文献资料,建立了金华市冬季主城区的成分谱和受体成分谱.利用CMB受体模型及二重解析技术分析了金华市PM2.5来源.结果表明:金华市冬季PM2.5主要来源是机动车尾气尘,其次是二次粒子.改善环境空气问题,就要控制机动车的使用,发展公共交通事业,提倡绿色出行.In order to study the main sources of PM2. 5 in Jinhua City,PM2. 5 samples were collected simultaneously from 2 stations( Jinhua City site and Zhejiang Normal University site) in January 2014. The samples were analyzed for inorganic elements,water soluble ions,organic carbon and total carbon. Chemical source profiles were reported for soil dust,resuspended dust,construction dust and two sources from other papers,including industrial dust( coal ash and metallurgical dust) and motor vehicles dust. Using CMB receptor model and dual resolution technique,the PM2. 5 source of Jinhua City was analyzed. The results showed that the main sources of PM2. 5 in winter in Jinhua was vehicle exhaust dust,followed by the secondary particles. To improve the environmental air quality,it was suggested that to control the using of motor vehicles,develop the public transport and promote green travel.

关 键 词：PM2.5 源解析 化学质量平衡模型 金华 冬季 

分 类 号：X513[环境科学与工程—环境工程]