Journal of Environmental Chemistry and Ecotoxicology
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Article Number - 9BBF8ED40121


Vol.5(9), pp. 227-233 , September 2013
https://doi.org/10.5897/JECE2013.0291
ISSN: 2141-226X


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Full Length Research Paper

Seasonal variations in airborne heavy metals in Vanderbijlpark, South Africa



S. J. Moja
  • S. J. Moja
  • Department of Environmental Sciences, Florida Campus, University of South Africa, P.O. Box X6, Florida, 1710, South Africa
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J. S. Mnisi
  • J. S. Mnisi
  • Department of Chemistry, Faculty of Applied and Computer Sciences, Vaal University of Technology, Private Bag X021, Vanderbijlpark, 1900, South Africa
  • Google Scholar







 Accepted: 15 August 2013  Published: 30 September 2013

Copyright © 2013 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


 

In this study, monthly settleable dust samples were collected in four seasons using the modified crude single open bucket units at five sites within the Vanderbijlpark area. The samples were captured in distilled water medium, filtered, air-dried, weighed to determine mass concentrations, digested with aqua regia acid solution and analyzed for heavy metals by inductively coupled plasma (ICP) 6000 Thermo-Electron modeltechnique. The average ranges of ten metals identified were: zinc (Zn,1.12 – 5.87 mg/L), iron (Fe, 2.25 –8.94 mg/L), chromium (Cr, 0.87 – 3.99 mg/L), titanium (Ti, 0.58 – 3.1 mg/L), manganese (Mn, 2.31 – 9.01 mg/L), lead (Pb, 0.5 – 2.34 mg/L), vanadium (V, 0.94 – 4.18) mg/L), copper (Cu, 0.78 – 3.01 mg/L),  nickel (Ni, 0.7 – 3.64 mg/L) and cadmium (Cd, 1.0 – 2.92 mg/L) respectively. Average daily mass concentrations obtained ranged from 2.42 – 1270 mg/m2/day in autumn, 520 – 1520 mg/m2/day in winter, 142 – 683 mg/m2/day in spring and 156 – 846 mg/m2/day in summer. Both the South African and the American industrial limits were exceeded in winter and autumn seasons at a farm site. A South African standard for residential limit, 600 mg/m2/day, was also exceeded at a school site during the same seasons.

 

Key words: Settleable dust,mass concentration; heavy metals, Vanderbijlpark.

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APA (2013). Seasonal variations in airborne heavy metals in Vanderbijlpark, South Africa. Journal of Environmental Chemistry and Ecotoxicology, 5(9), 227-233.
Chicago   S. J. Moja and J. S. Mnisi        . "Seasonal variations in airborne heavy metals in Vanderbijlpark, South Africa." Journal of Environmental Chemistry and Ecotoxicology 5, no. 9 (2013): 227-233.
MLA   S. J. Moja and J. S. Mnisi        . "Seasonal variations in airborne heavy metals in Vanderbijlpark, South Africa." Journal of Environmental Chemistry and Ecotoxicology 5.9 (2013): 227-233.
   
DOI https://doi.org/10.5897/JECE2013.0291
URL http://academicjournals.org/journal/JECE/article-abstract/9BBF8ED40121

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