Tracing dust transport from Middle-East over Delhi in March 2012 using metal and lead isotope composition

Tracing dust transport from Middle-East over Delhi in March 2012 using metal and lead isotope composition

A severe dust-storm which was originated in Middle-East crossed over Delhi during March 20–22, 2012. We have collected these dust-storm (DS) aerosol samples, and analyzed them for selected metals (As, Cd, Cr, Cu, Fe, Ni, Pb, Sb, Se, Sn, Sr, V and Zn) together with after dust-storm (ADS) and winter (...

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Veröffentlicht in:Atmospheric environment (1994) 2016-05, Vol.132, p.179-187
Hauptverfasser: Kumar, S., Aggarwal, S.G., Malherbe, J., Barre, J.P.G., Berail, S., Gupta, P.K., Donard, O.F.X.
Format: Artikel
Sprache:eng
Schlagworte:
Aerosols
Chemical Sciences
Dust
Isotope
Lead
Metal
Tracers
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Zusammenfassung:A severe dust-storm which was originated in Middle-East crossed over Delhi during March 20–22, 2012. We have collected these dust-storm (DS) aerosol samples, and analyzed them for selected metals (As, Cd, Cr, Cu, Fe, Ni, Pb, Sb, Se, Sn, Sr, V and Zn) together with after dust-storm (ADS) and winter (WS) samples. High aerosol mass loadings were observed in DS samples (1097–1965 μg/m3). On the contrary, metals derived prominently from the anthropogenic sources were found lower in concentration compared to that of ADS and WS aerosols. We observed significantly high concentrations of Ni and V (which are abundantly found in crude oils of Middle-East origin) in the DS samples than that of ADS and WS samples. Also enrichment factor (EF) of these metals with respect to Fe shows no significant enrichment (
ISSN:1352-2310
1873-2844
DOI:10.1016/j.atmosenv.2016.03.002