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

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TitleRapid changes of precipitation pH in Qinghai Province, the northeastern Tibetan Plateau
AuthorsZhang, DD1
Jim, CY1
Peart, MR1
Shi, C1
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
CitationScience Of The Total Environment, 2003, v. 305 n. 1-3, p. 241-248 [How to Cite?]
DOI: http://dx.doi.org/10.1016/S0048-9697(02)00464-3
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.
ISSN0048-9697
2011 Impact Factor: 3.286
2011 SCImago Journal Rankings: 0.144
DOIhttp://dx.doi.org/10.1016/S0048-9697(02)00464-3
ISI Accession Number IDWOS:000182535700020
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorZhang, DD
dc.contributor.authorJim, CY
dc.contributor.authorPeart, MR
dc.contributor.authorShi, C
dc.date.accessioned2009-04-03T07:44:10Z
dc.date.available2009-04-03T07:44:10Z
dc.date.issued2003
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.
dc.description.naturepostprint
dc.identifier.citationScience Of The Total Environment, 2003, v. 305 n. 1-3, p. 241-248 [How to Cite?]
DOI: http://dx.doi.org/10.1016/S0048-9697(02)00464-3
dc.identifier.doihttp://dx.doi.org/10.1016/S0048-9697(02)00464-3
dc.identifier.epage248
dc.identifier.hkuros80660
dc.identifier.isiWOS:000182535700020
dc.identifier.issn0048-9697
2011 Impact Factor: 3.286
2011 SCImago Journal Rankings: 0.144
dc.identifier.issue1-3
dc.identifier.openurl
dc.identifier.pmid12670772
dc.identifier.scopuseid_2-s2.0-0037446098
dc.identifier.spage241
dc.identifier.urihttp://hdl.handle.net/10722/54350
dc.identifier.volume305
dc.languageeng
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv
dc.publisher.placeNetherlands
dc.relation.ispartofScience of the Total Environment
dc.relation.referencesReferences in Scopus
dc.rightsScience of the Total Environment. Copyright © Elsevier BV.
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
dc.subject.meshAcid Rain
dc.subject.meshAir Pollution - analysis
dc.subject.meshChina
dc.subject.meshDust
dc.subject.meshEnvironmental Monitoring
dc.subject.meshHydrogen-Ion Concentration
dc.subject.meshIndustry
dc.subject.meshSoil
dc.subjectPrecipitation pH
dc.subjectPrecipitation chemistry
dc.subjectAkaline rain
dc.subjectAir pollutant
dc.subjectAir dust
dc.titleRapid changes of precipitation pH in Qinghai Province, the northeastern Tibetan Plateau
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong