Water-soluble organic compounds (WSOCs) in PM2.5 and PM10 at a ubtropical site of India
IR@NEIST: CSIR-North East Institute of Science and Technology, Jorhat
View Archive Info| Field | Value | |
| Title |
Water-soluble organic compounds (WSOCs) in PM2.5 and PM10 at a ubtropical site of India
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| Creator |
KHARE , P
BARUAH , B P RAO , P G |
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| Subject |
Material Science
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| Description |
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
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| Date |
2011
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://neist.csircentral.net/128/1/2946.pdf
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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| Relation |
http://neist.csircentral.net/128/
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