Characteristics of Atmospheric Trace Gases, Particulate Matter and Heavy Metal Pollution in Karachi, Pakistan
International Journal of Environmental Monitoring and Analysis
Volume 5, Issue 3, June 2017, Pages: 73-82
Received: Nov. 17, 2016; Accepted: Nov. 30, 2016; Published: Apr. 24, 2017
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Authors
Durdana Rais Hashmi, Centre for Environmental Studies, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Karachi, Pakistan
Akhtar Shareef, Centre for Environmental Studies, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Karachi, Pakistan
Razia Begum, Centre for Environmental Studies, Pakistan Council of Scientific and Industrial Research Laboratories Complex, Karachi, Pakistan
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Abstract
This study was carried out for determination of Aerosol particulate matter (PM10), trace gases (SO2, NO2, CO) and heavy metals (Zn, Pb, Mn, Cu, Ni and Cd) in the atmospheric air of Karachi city. Sampling has been done at thirteen locations between during the year of 2014. The total average concentrations of SO2, NO2, CO and PM10 were 65.9, 98.7, 1.49 and 202.14μg m–3, respectively. An atomic absorption spectrophotometer (AAS) was used to determine the trace metal concentrations in the PM10 size fraction. The total average concentrations of Cd, Zn, Pb, Mn, Cu and Ni in PM10 were 0.09, 2.55, 2.23, 1.92, 2.15 and 1.44μg m–3 respectively. The Pb concentration in Karachi shows a decreasing tendency, presumably due to the ban on the use of leaded fuel. The overall trace metal concentrations in Karachi are higher than those in European (e.g., Spain, Norway) and East Asian (e.g., Taiwan) locations, but lower than those measured in Southeast Asian (Kanpur, Delhi, Mumbai, India) cities.
Keywords
Air Pollution, Trace Gases, Particulate Matter, Heavy Metals
To cite this article
Durdana Rais Hashmi, Akhtar Shareef, Razia Begum, Characteristics of Atmospheric Trace Gases, Particulate Matter and Heavy Metal Pollution in Karachi, Pakistan, International Journal of Environmental Monitoring and Analysis. Vol. 5, No. 3, 2017, pp. 73-82. doi: 10.11648/j.ijema.20170503.12
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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