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dc.contributor.authorVan Zyl, Pieter G.
dc.contributor.authorBeukes, Johan P.
dc.contributor.authorDu Toit, Grizelda
dc.contributor.authorHendriks, Johan
dc.contributor.authorPienaar, Jacobus J.
dc.contributor.authorLaakso, Lauri
dc.date.accessioned2016-03-09T09:02:03Z
dc.date.available2016-03-09T09:02:03Z
dc.date.issued2014
dc.identifier.citationVan Zyl, P.G. et al. 2014. Assessment of atmospheric trace metals in the western Bushveld Igneous Complex, South Africa. South African journal of science, 110(3/4): Article no 2013-0280. [http://dx.doi.org/10.1590/sajs.2014/20130280]en_US
dc.identifier.issn0038-2353
dc.identifier.issn1996-7489 (Online)
dc.identifier.urihttp://hdl.handle.net/10394/16596
dc.identifier.urihttp://dx.doi.org/10.1590/sajs.2014/20130280
dc.identifier.urihttps://www.sajs.co.za/article/view/3768/5081
dc.description.abstractTrace metal species emitted into the atmosphere from natural and anthropogenic sources can cause various health-related and environmental problems. Limited data exist for atmospheric trace metal concentrations in South Africa, which has the largest industrialised economy in Africa, with significant mining and metallurgical activities. A large fraction of these mineral assets is concentrated in the Bushveld Igneous Complex, with the western limb being the most exploited. To partially address this knowledge gap, atmospheric trace metals were collected in the western Bushveld Igneous Complex at Marikana in the North West Province. Diurnal PM2.5 and PM10 samples were collected for 1 year. A total of 27 trace metal species were determined. With the exception of Ni, none of the trace metals measured during the sampling period exceeded local or international air quality standard limit values. Total trace metal concentrations in the PM10 fraction peaked during the dry months and were regularly washed out during the wet season. A less significant seasonal trend was observed for the trace metal concentrations in the PM2.5 fraction; a finding attributed to a faster replenishment of smaller particles into the atmosphere after rain events. About 80% of the PM10 trace metal levels measured occurred in the PM2.5 fraction, while 40% or more of all metals emanated from the PM2.5 fraction. This finding indicated a strong influence of anthropogenic sources. Four meaningful emission sources were determined from explorative principal component factor analysis: crustal, vanadium related, base metal related and ferrochromium related, which correlated well with the anticipated atmospheric trace metal sources in the regionen_US
dc.language.isoenen_US
dc.publisherASSAfen_US
dc.subjectAir qualityen_US
dc.subjectTemporal assessmenten_US
dc.subjectPrincipal component factor analysisen_US
dc.subjectSource apportionmenten_US
dc.titleAssessment of atmospheric trace metals in the western Bushveld Igneous Complex, South Africaen_US
dc.typeArticleen_US
dc.contributor.researchID10710361 - Van Zyl, Pieter Gideon
dc.contributor.researchID10092390 - Beukes, Johan Paul
dc.contributor.researchID10062092 - Pienaar, Jacobus Johannes
dc.contributor.researchID21795827 - Laakso, Lauri
dc.contributor.researchID10078428 - Hendriks, Johannes Stephanus


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