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Article: Radiological impact of coal ash from the power plants in Hong Kong

TitleRadiological impact of coal ash from the power plants in Hong Kong
Authors
Issue Date1996
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jenvrad
Citation
Journal Of Environmental Radioactivity, 1996, v. 30 n. 1, p. 1-14 How to Cite?
AbstractSamples of coal, furnace bottom ash and pulverised fly ash were collected from the two electric companies in Hong Kong. The samples were collected over a period of 1 year and therefore they were representatives of the annual consumption of coal as well as the annual production of the ashes. Special procedures were taken to separately burn the coal bought from different places so that the origins of the ash samples are traceable. The radionuclide contents, radon emanating fraction and porosity of the samples were measured. Mathematical models were then used to evaluate the radiological hazard of the ash samples when used in the building industry. Both the γ and radon exposures due to the coal ash loaded concrete in buildings are not much different from that due to unloaded concrete. External γ dose rate and 222Rn concentration at the centre of an uncovered ash lagoon are estimated to be 0.165 μGyh-1 and 2.9 Bqm-3, respectively, again not much different from the local background. On the other hand, the committed effective dose due to inhalation of PFA of about 7.1 x 108 BμSv, where B is the PFA loading in air, can be an important source of exposure if resuspension of ash particles is not properly controlled.
Persistent Identifierhttp://hdl.handle.net/10722/90470
ISSN
2015 Impact Factor: 2.047
2015 SCImago Journal Rankings: 1.053
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTso, MYWen_HK
dc.contributor.authorLeung, JKCen_HK
dc.date.accessioned2010-09-06T10:11:02Z-
dc.date.available2010-09-06T10:11:02Z-
dc.date.issued1996en_HK
dc.identifier.citationJournal Of Environmental Radioactivity, 1996, v. 30 n. 1, p. 1-14en_HK
dc.identifier.issn0265-931Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/90470-
dc.description.abstractSamples of coal, furnace bottom ash and pulverised fly ash were collected from the two electric companies in Hong Kong. The samples were collected over a period of 1 year and therefore they were representatives of the annual consumption of coal as well as the annual production of the ashes. Special procedures were taken to separately burn the coal bought from different places so that the origins of the ash samples are traceable. The radionuclide contents, radon emanating fraction and porosity of the samples were measured. Mathematical models were then used to evaluate the radiological hazard of the ash samples when used in the building industry. Both the γ and radon exposures due to the coal ash loaded concrete in buildings are not much different from that due to unloaded concrete. External γ dose rate and 222Rn concentration at the centre of an uncovered ash lagoon are estimated to be 0.165 μGyh-1 and 2.9 Bqm-3, respectively, again not much different from the local background. On the other hand, the committed effective dose due to inhalation of PFA of about 7.1 x 108 BμSv, where B is the PFA loading in air, can be an important source of exposure if resuspension of ash particles is not properly controlled.en_HK
dc.languageengen_HK
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jenvraden_HK
dc.relation.ispartofJournal of Environmental Radioactivityen_HK
dc.rightsJournal of Environmental Radioactivity. Copyright © Elsevier Ltd.en_HK
dc.titleRadiological impact of coal ash from the power plants in Hong Kongen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0265-931X&volume=30&issue=1&spage=1&epage=14&date=1996&atitle=Radiological+impact+of+coal+ash+from+the+power+plants+in+Hong+Kongen_HK
dc.identifier.emailLeung, JKC: jkcleung@hku.hken_HK
dc.identifier.authorityLeung, JKC=rp00732en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/0265-931X(95)00042-9en_HK
dc.identifier.scopuseid_2-s2.0-0030063870en_HK
dc.identifier.hkuros13629en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0030063870&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume30en_HK
dc.identifier.issue1en_HK
dc.identifier.spage1en_HK
dc.identifier.epage14en_HK
dc.identifier.isiWOS:A1996TN67800001-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridTso, MYW=7102052118en_HK
dc.identifier.scopusauthoridLeung, JKC=24080627200en_HK

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