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Article: Rapid changes of precipitation pH in Qinghai Province, the northeastern Tibetan Plateau

TitleRapid changes of precipitation pH in Qinghai Province, the northeastern Tibetan Plateau
Authors
KeywordsPrecipitation pH
Precipitation chemistry
Akaline rain
Air pollutant
Air dust
Issue Date2003
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv
Citation
Science Of The Total Environment, 2003, v. 305 n. 1-3, p. 241-248 How to Cite?
AbstractRainfall monitoring programs were conducted in two industrial cities of China's Qinghai Province, Xining and Germu, in some periods of the 1980s and 1990s. The results show that the natural precipitation in this area is originally alkaline. Compared with the late 1980s records, pH values declined significantly from approximately 8 in the 1980s to below 7 in mid-1990s. Such rapid and drastic changes were attributed to fast industrial development that released a large amount of pollutants. Subsequent tough control on pollutant emission partly restored pH values back to above 7 in the late 1990s. The pH and rainfall chemical analyses indicate that alkaline rain in this continental arid region is caused by airborne dusts which originate from local alkaline soils. With decrease of pH value, the total ionic concentration of rainwater is increased because acids were added to the rainwater. © 2002 Elsevier Science B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/54350
ISSN
2014 Impact Factor: 4.099
2013 SCImago Journal Rankings: 1.530
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhang, DDen_HK
dc.contributor.authorJim, CYen_HK
dc.contributor.authorPeart, MRen_HK
dc.contributor.authorShi, Cen_HK
dc.date.accessioned2009-04-03T07:44:10Z-
dc.date.available2009-04-03T07:44:10Z-
dc.date.issued2003en_HK
dc.identifier.citationScience Of The Total Environment, 2003, v. 305 n. 1-3, p. 241-248en_HK
dc.identifier.issn0048-9697en_HK
dc.identifier.urihttp://hdl.handle.net/10722/54350-
dc.description.abstractRainfall monitoring programs were conducted in two industrial cities of China's Qinghai Province, Xining and Germu, in some periods of the 1980s and 1990s. The results show that the natural precipitation in this area is originally alkaline. Compared with the late 1980s records, pH values declined significantly from approximately 8 in the 1980s to below 7 in mid-1990s. Such rapid and drastic changes were attributed to fast industrial development that released a large amount of pollutants. Subsequent tough control on pollutant emission partly restored pH values back to above 7 in the late 1990s. The pH and rainfall chemical analyses indicate that alkaline rain in this continental arid region is caused by airborne dusts which originate from local alkaline soils. With decrease of pH value, the total ionic concentration of rainwater is increased because acids were added to the rainwater. © 2002 Elsevier Science B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenven_HK
dc.relation.ispartofScience of the Total Environmenten_HK
dc.rightsScience of the Total Environment. Copyright © Elsevier BV.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPrecipitation pHen_HK
dc.subjectPrecipitation chemistryen_HK
dc.subjectAkaline rainen_HK
dc.subjectAir pollutanten_HK
dc.subjectAir dusten_HK
dc.subject.meshAcid Rainen_HK
dc.subject.meshAir Pollution - analysisen_HK
dc.subject.meshChinaen_HK
dc.subject.meshDusten_HK
dc.subject.meshEnvironmental Monitoringen_HK
dc.subject.meshHydrogen-Ion Concentrationen_HK
dc.subject.meshIndustryen_HK
dc.subject.meshSoilen_HK
dc.titleRapid changes of precipitation pH in Qinghai Province, the northeastern Tibetan Plateauen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0048-9697&volume=305&issue=1-3&spage=241&epage=248&date=2003&atitle=Rapid+changes+of+precipitation+pH+in+Qinghai+Province,+the+northeastern+Tibetan+Plateauen_HK
dc.identifier.emailZhang, DD:zhangd@hkucc.hku.hken_HK
dc.identifier.emailJim, CY:hragjcy@hkucc.hku.hken_HK
dc.identifier.emailPeart, MR:mrpeart@hkucc.hku.hken_HK
dc.identifier.authorityZhang, DD=rp00649en_HK
dc.identifier.authorityJim, CY=rp00549en_HK
dc.identifier.authorityPeart, MR=rp00612en_HK
dc.description.naturepostprinten_HK
dc.identifier.doi10.1016/S0048-9697(02)00464-3en_HK
dc.identifier.pmid12670772en_HK
dc.identifier.scopuseid_2-s2.0-0037446098en_HK
dc.identifier.hkuros80660-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037446098&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume305en_HK
dc.identifier.issue1-3en_HK
dc.identifier.spage241en_HK
dc.identifier.epage248en_HK
dc.identifier.isiWOS:000182535700020-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridZhang, DD=9732911600en_HK
dc.identifier.scopusauthoridJim, CY=7006143750en_HK
dc.identifier.scopusauthoridPeart, MR=7003362850en_HK
dc.identifier.scopusauthoridShi, C=7402120739en_HK

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