摘要
文章利用苏州南门空气质量监测站点的可溶性离子组分的数据,结合2013年连续重污染过程细颗粒物中可溶性离子组分。结果表明,重污染过程是在不利气象条件下一次污染过程,从后向轨迹分析,空气团裹挟大量污染物到达苏州,使本地污染和区域污染相互叠加;可溶性离子组分占到细颗粒物组分的一半,可溶性离子又以硫酸盐、硝酸盐和铵盐为主要成分,其中硫酸盐主要来自于二氧化硫的转换。
The paper presents the analysis of water- soluble ion composition of fine particle in consecutive heavy polluted period occurred in December,2013 based on the data set collected in NANMEN station.It is concluded that unfavorable weather condition leads to pollutant accumulation.Air parcels arriving Suzhou carried a large amount of pollutants and heavy pollution characterized by high concentration of ion composition in fine particle and sulfate and nitrate dominate the water- soluble ion composition and are converted from SO2.
出处
《环境科学与管理》
CAS
2015年第2期114-118,共5页
Environmental Science and Management
基金
苏科协[2013]43号2013B20苏州灰霾天气长效防控治理机制研究
关键词
可溶性离子组分
细颗粒物
连续重污染过程
water-soluble ion composition
PM2.5
consecutive heavy polluted period
