Metal Signature of Atmospheric Aerosol from Kochi, the Queen of Arabian Sea, Kerala, India

Document Type : Original Research Paper


Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Cochin-16, Kerala, INDIA



The present research article highlights the metal (Cd, Cu, Pb, Zn and Fe)
distribution pattern in the RSPM generated in different hot spot sites located at Kochi, the
Queen of Arabian Sea. These sampling sites are categorized under three different zones
as estuarine, riverine, and coastal. Two sampling phases are selected in order to check the
consistency in pollution trend after a two year gap and are described in Phase I and Phase
II, respectively. Metals are noticed to be intensely concentrated in the post monsoon
months in both phases. Among the metals, Fe is revealed as the prominent metal at the
estuarine sites. Estuarine and riverine zone expresses the overall enrichment pattern with
slight difference at coastal regime in phase I. In phase II, insignificant metal load with
irregular pattern is observed. Source apportionment study reveals that major sources of
metals are from automobile exhausts and the estuarine zone is entangled with 45.9%.


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