Arid
DOI10.1007/s10874-012-9231-8
Fine mode aerosol chemistry over a tropical urban atmosphere: characterization of ionic and carbonaceous species
Chatterjee, A.1; Dutta, C.1; Jana, T. K.2; Sen, S.1
通讯作者Chatterjee, A.
来源期刊JOURNAL OF ATMOSPHERIC CHEMISTRY
ISSN0167-7764
EISSN1573-0662
出版年2012
卷号69期号:2页码:83-100
英文摘要

An extensive aerosol sampling program was conducted during January-December 2006 over Kolkata (22A(0)33’ N and 88A(0)20’ E), a mega-city in eastern India in order to understand the sources, distributions and properties of atmospheric fine mode aerosol (PM2.5). The primary focus of this study is to determine the relative contribution of natural and anthropogenic as well as local and transported components to the total fine mode aerosol loading and their seasonal distributions over the metropolis. The average concentrations of fine mode aerosol was found to be 71.2 A +/- 25.2 mu gm(-3) varying between 34.5 mu gm(-3) in monsoon and 112.6 mu gm(-3) in winter. The formation pathways of major secondary aerosol components like nitrate and sulphate in different seasons are discussed. A long range transport of dust aerosol from arid and semi-arid regions of western India and beyond was observed during pre-monsoon which significantly enriched the total aerosol concentration. Vehicular emissions, biomass burning and transported dust particles were the major sources of PM2.5 from local and continental regions whereas sea-salt aerosol was the major source of PM2.5 from marine source regions.


英文关键词Fine mode aerosol Ionic and carbonaceous species Secondary aerosol Kolkata
类型Article
语种英语
国家India
收录类别SCI-E
WOS记录号WOS:000305735600001
WOS关键词SOURCE APPORTIONMENT ; PARTICULATE MATTER ; NITRATE ; SIZE ; PARTICLES ; AMMONIUM ; CHLORIDE ; DUST ; PM10 ; MASS
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/173354
作者单位1.Univ Calcutta, Dept Chem, Kolkata, India;
2.Univ Calcutta, Dept Marine Sci, Kolkata, India
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Chatterjee, A.,Dutta, C.,Jana, T. K.,et al. Fine mode aerosol chemistry over a tropical urban atmosphere: characterization of ionic and carbonaceous species[J],2012,69(2):83-100.
APA Chatterjee, A.,Dutta, C.,Jana, T. K.,&Sen, S..(2012).Fine mode aerosol chemistry over a tropical urban atmosphere: characterization of ionic and carbonaceous species.JOURNAL OF ATMOSPHERIC CHEMISTRY,69(2),83-100.
MLA Chatterjee, A.,et al."Fine mode aerosol chemistry over a tropical urban atmosphere: characterization of ionic and carbonaceous species".JOURNAL OF ATMOSPHERIC CHEMISTRY 69.2(2012):83-100.
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