首页 | 本学科首页   官方微博 | 高级检索  
     检索      

春节期间南京气溶胶质量浓度和化学组成特征
引用本文:王红磊,朱,彬,沈利娟,张泽锋,刘晓慧.春节期间南京气溶胶质量浓度和化学组成特征[J].中国环境科学,2014,34(1):30-39.
作者姓名:王红磊      沈利娟  张泽锋  刘晓慧
摘    要:为研究春节期间燃放烟花爆竹对城市大气气溶胶质量浓度和化学组成分布特征的影响,对南京市2012年1月19~31日大气气溶胶质量浓度和水溶性离子及重金属等化学成分进行了观测.结果表明:烟花爆竹的大量集中燃放可使PM1.0的浓度以15.5μg/(m3·h)的速率增长;并使得能见度以1.625km/h的速率急剧下降.质量浓度谱和水溶性离子谱在燃放期均为三峰型分布,在非燃放期为双峰型分布.燃放期PM2.1和PM1.1中的K+、SO42-、NO3-、Cl-和Mg2+所占的比例比非燃放期升高了16%~38%,其他离子浓度变化不大.对于0.2~2.0μm的气溶胶,春节期间硝酸盐、含锌和含铜颗粒主要来自烟花爆竹燃放,含钾颗粒部分来自烟花爆竹燃放,含铅颗粒来自工业排放,烟花爆竹的燃放基本不产生硫酸盐颗粒.

关 键 词:春节  气溶胶  燃放爆竹  质量浓度  水溶性离子  重金属  
收稿时间:2013-05-20;

The mass concentration and chemical compositions of the atmospheric aerosol during the Spring Festival in Nanjing
WANG Hong-Lei,ZHU Bin,SHEN Li-Juan,ZHANG Ze-Feng,LIU Xiao-Hui.The mass concentration and chemical compositions of the atmospheric aerosol during the Spring Festival in Nanjing[J].China Environmental Science,2014,34(1):30-39.
Authors:WANG Hong-Lei  ZHU Bin  SHEN Li-Juan  ZHANG Ze-Feng  LIU Xiao-Hui
Abstract:In China, the most intensive burning of firework event occurs in the New Year Festivities, which release the high concentrations of particles, and cause acute short term air pollution. Concentrations and chemical components of PM10 were measured and analyzed in Nanjing, during the Spring Festival on January 19~31, 2012, for assessing the impacts of fireworks on ambient air quality. The PM1.0 concentration increased at the rate of 15.5μg/(m3·h) and the visibility was reduced at the rate of 1.625km/h during the study period. The results of the mass spectra and water-soluble ions spectrum can be described as trimodal distributions during the burning periods and bimodal distributions during non-burning periods. The ions of K+, SO42-, NO3-, Cl- and Mg2+ in PM2.1 and PM1.1 increased by the range of 16%~38% during the burning periods. For aerosol in the range of 0.2~2.0μm, nitrate, zinc, copper and part of K-including particles were mainly originated from firework burning, however, sulfate particles were hardly originated by this process, Pb-including particles were from industry emission.
Keywords:the Spring Festival  aerosol  fireworks  mass concentration  water-soluble ions  heavy metal
本文献已被 CNKI 等数据库收录!
点击此处可从《中国环境科学》浏览原始摘要信息
点击此处可从《中国环境科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号