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Article: Apportionment of air pollution sources by receptor models in Hong Kong

TitleApportionment of air pollution sources by receptor models in Hong Kong
Authors
KeywordsFactor analysis
Multivariate regression analysis
Receptors models
Source apportionment
Urban air pollution
Issue Date1995
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/atmosenv
Citation
Atmospheric Environment, 1995, v. 29 n. 16, p. 2041-2048 How to Cite?
AbstractThe application of a receptor modelling method for the apportionment of air pollution sources in a highly urbanised area has been investigated using trace metals as marker elements in air particulates sampled at five stations in New Territories in Hong Kong. The elemental profile of the coal used for burning, the fly ash obtained after the electrostatic precipitator and the ambient particulates collected at the five sampling sites were determined. The variability is found to be substantial and necessitates the use of factor analysis to identify the source prior to regression analysis for apportionment of the contribution of the various factors identified. Six factors are successfully isolated and their sources identified. Despite a negative loading of the sea aerosol, the mass contributions of other major sources (mg m-3) are estimated as construction work (6.48), automobile/incineration (1.93), wind-blown dust (7.14), coal-fired power plant (4.92) and oil combustion sources (8.15). The use of particle fractionation was found able to resolve earthy and non-natural material, especially at the fine particulate end, and thus provides a method to solve the negative scaling problem encountered during the regression analysis.
Persistent Identifierhttp://hdl.handle.net/10722/70151
ISSN
2015 Impact Factor: 3.459
2015 SCImago Journal Rankings: 1.999
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorFung, YSen_HK
dc.contributor.authorWong, LWYen_HK
dc.date.accessioned2010-09-06T06:20:11Z-
dc.date.available2010-09-06T06:20:11Z-
dc.date.issued1995en_HK
dc.identifier.citationAtmospheric Environment, 1995, v. 29 n. 16, p. 2041-2048en_HK
dc.identifier.issn1352-2310en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70151-
dc.description.abstractThe application of a receptor modelling method for the apportionment of air pollution sources in a highly urbanised area has been investigated using trace metals as marker elements in air particulates sampled at five stations in New Territories in Hong Kong. The elemental profile of the coal used for burning, the fly ash obtained after the electrostatic precipitator and the ambient particulates collected at the five sampling sites were determined. The variability is found to be substantial and necessitates the use of factor analysis to identify the source prior to regression analysis for apportionment of the contribution of the various factors identified. Six factors are successfully isolated and their sources identified. Despite a negative loading of the sea aerosol, the mass contributions of other major sources (mg m-3) are estimated as construction work (6.48), automobile/incineration (1.93), wind-blown dust (7.14), coal-fired power plant (4.92) and oil combustion sources (8.15). The use of particle fractionation was found able to resolve earthy and non-natural material, especially at the fine particulate end, and thus provides a method to solve the negative scaling problem encountered during the regression analysis.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/atmosenven_HK
dc.relation.ispartofAtmospheric Environmenten_HK
dc.subjectFactor analysisen_HK
dc.subjectMultivariate regression analysisen_HK
dc.subjectReceptors modelsen_HK
dc.subjectSource apportionmenten_HK
dc.subjectUrban air pollutionen_HK
dc.titleApportionment of air pollution sources by receptor models in Hong Kongen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1352-2310&volume=29&spage=1352&epage=2310&date=1995&atitle=Apportionment+of+air+pollution+sources+by+receptor+models+in+Hong+Kongen_HK
dc.identifier.emailFung, YS:ysfung@hku.hken_HK
dc.identifier.authorityFung, YS=rp00697en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/1352-2310(94)00239-Hen_HK
dc.identifier.scopuseid_2-s2.0-0028991272en_HK
dc.identifier.hkuros20050en_HK
dc.identifier.volume29en_HK
dc.identifier.issue16en_HK
dc.identifier.spage2041en_HK
dc.identifier.epage2048en_HK
dc.identifier.isiWOS:A1995RT64100013-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridFung, YS=13309754700en_HK
dc.identifier.scopusauthoridWong, LWY=25949142600en_HK

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