Heavy metals in dusts from commercial and residential areas of Jharia coal mining town
IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad
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Title |
Heavy metals in dusts from commercial and residential areas
of Jharia coal mining town
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Creator |
Masto, R.E.
George, Joshy Ram, L.C. |
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Subject |
Enviornmental Management
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Description |
People living in coal mine and other coal-based
industrial areas are prone to health risk from heavy-metal
exposure in dust emissions. Establishing the source of the
toxic metals in dusts is important for policies for minimizing
their human exposure risks. Dust samples from
commercial and residential areas of Jharia coal mining
town (India) were collected and analysed for major and
minor elements. Fe, Ca, and Al were the most abundant
major elements in the dust samples. Although the absolute
concentrations of heavy metal in the dust followed more or
less a similar trend, the enrichment factors (compared to
control) of heavy metals decreased in the order: commercial
site (Rb[Cr[Pb[Ni[Zn[Cu[Co[Sr) and
residential site (Ni[Cr[Rb[Co[Sr[As[
Cu[V). Pollution load index, calculated based on the
relative enrichment was higher for the residential site
(1.534) than for the commercial site (1.366). Seasonal
variations were significant for As, Co, Cr, Ni, Pb, and Sr.
The concentration of all the elements was higher in winter
season, except the Pb content was higher in summer.
Enrichment factor, principal component, and cluster analyses
suggest that Cu, Cr, Co, and Ni in dusts originate from
coal, and Pb and Zn from vehicular and traffic-related
emissions. For exposure risk assessment, the total chronic
daily intake calculated for each element of interest was
divided by the corresponding toxicity reference dose to
yield hazard quotient. The hazard quotient values were
\1.0, indicating no risks to people from these heavy
metals; however, the physical dust may have human health
effects. Further studies are needed on the direct health
effect of dust particles.
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Publisher |
Springer
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Date |
2015
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://cimfr.csircentral.net/1502/1/ROUT_ET_AL-Environmental_Earth_Scieces-2015.pdf
Masto, R.E. and George, Joshy and Ram, L.C. (2015) Heavy metals in dusts from commercial and residential areas of Jharia coal mining town. Environmental Earth Science, 73 (1). pp. 347-359. ISSN 1866-6280 |
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Relation |
http://cimfr.csircentral.net/1502/
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