KHARE , P and BARUAH , B P and RAO , P G (2011) Water-soluble organic compounds (WSOCs) in PM2.5 and PM10 at a ubtropical site of India. Tellus B, 63 (5). pp. 990-1000.

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PM2.5 andPM10 samplescollectedatasuburbansiteofnortheasternpartofIndiahavebeenanalysedforparticlemass, totalcarbon(TC),water-solubletotalcarbon(WSTC),water-solubleorganiccarbon(WSOC),water-solubleinorganic carbon (WSIC), organic acids (formic, acetic, proponoic and oxalic acids) along with inorganic ions (NO3"12, SO42"12 and NH4"12). Most of the PM10 consists of PM2.5 in the present site (ratio 54 1374%). WSTC content in PM2.5 and PM10 corresponds to 21% and 16%, respectively, of their total particle masses. Thermo gravimetric analysis showed the presence of humic-like substances (16 1322%) in particulate samples. Domestic heating and stagnant atmospheric conditions enhanced the levels of these carbonaceous compounds in PM2.5 and PM10 in winter. Qualitative estimation of various functional groups by Fourier transform infrared (FTIR) analysis indicates the presence of carboxylic, hydroxyl,aliphaticandaromatichydrocarbons,aminesandsulphurouscompoundsintheseaerosols.Absoluteprincipal component analysis applied on the aerosol data resolves four factors. These factors are associated with carbonaceous aerosols released from combustion of coal and wood, secondary inorganic and organic aerosols and water-soluble inorganicfraction

Item Type: Article
Subjects: Chemistry > Material Science
Depositing User: Dr. PK Barooah
Date Deposited: 28 Dec 2011 06:09
Last Modified: 28 Dec 2011 06:09

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