Seasonal Variations and Sources of Heavy Metals in Free Fall Dust in an Industrial City of Western India
Publish place: Iranica Journal of Energy and Environment، Vol: 5، Issue: 2
Publish Year: 1392
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJEE-5-2_007
تاریخ نمایه سازی: 7 آذر 1394
Abstract:
This study investigates seasonal variations in average concentrations of metals in free fall dustsamples (350) collected at various sampling sites situated in five different zones of an industrial city Kota, India.Average concentrations of heavy metals (Cu, Cd, Zn and Pb) were higher in winter and lower in summer andreverse trend was observed for crustal metals (Fe, Ca and Mg). Overall, the order of average concentrations ofheavy metals were Zn >Pb> Cu > Cd in both seasons.Seasonal differences in metal concentrationswere due todifferences in wind direction, wind strength, temperature, relative humidity and anthropogenic activities atsampling sites. Enrichment factor and positive correlation between anthropogenic metal species such as Cu andCd; Cu and Zn; Cu and Pb; Cd and Zn; Cd and Pb; Zn and Pb in both seasons indicate that their origin sourceiscommon i.e. coal combustion at thermal power station.
Keywords:
Free fall dust Heavy metals Wind direction Enrichment coefficients Thermal power station Correlation coefficients
Authors
Meena Marju
Department of Chemistry, Government College, Kota- ۳۲۴۰۰۱, Rajasthan, India
Meena Bharat Singh
Department of Chemistry, Government College, Kota- ۳۲۴۰۰۱, Rajasthan, India
Chandrawat Utra
Department of Chemistry, Government College, Kota- ۳۲۴۰۰۱, Rajasthan, India
Rani Ashu
Department of Pure and Applied Chemistry, University of Kota, Kota-۳۲۴۰۰۵, Rajasthan, India