摘要
对2009年夏季浙东沿海地区环境空气质量进行监测,监测大气颗粒物(TSP、PM10、PM2.5、PM1.0)浓度,分析颗粒物污染特征、水溶性离子及无机元素组成,运用化学质量平衡受体模型(CMB模型)对浙东沿海地区大气TSP来源进行解析。结果表明,浙东沿海地区的大气颗粒物主要以细颗粒物为主,颗粒物中主要的水溶性离子为SO24-、NH4+、Ca2+,土壤尘是该地区大气TSP的主要来源,北仑、乐清和奉化TSP中土壤尘的分担率分别达到55.49%、42.52%、40.70%,各监测点TSP来源具有一定的地域特征。
This research monitored the ambient air quality in Ningbo and Wenzhou during the summer of 2009,including the particulates concentration（TSP,PM10,PM2.5,PM1.0）.This article analyzed the pollution characteristics,water-soluble ion and inorganic elements composition of atmospheric particulates,CMB model was used to study the source apportionment of TSP.The results indicated the proportion of the fine particulate was quite high,and SO2-4,NH＋4,Ca2＋ were the main water-soluble ion in atmospheric particulates.Soil dust was the principal source of particulates in the coastal cities of Zhejiang province,its contribution to TSP of Beilun site,Yueqing site and Fenghua site were 55.49%,42.52%,40.70% respectively.The source distribution of TSP in different sites showed spatial diversity.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2010年第6期65-68,共4页
Environmental Pollution & Control
关键词
大气颗粒物
污染特征
源解析
atmospheric particulates
pollution characteristics
source apportionment
