Calcutta Pollutants: Part III. Toxic Metals in Dust and Characterisation of Individual Aerosol Particles

摘要

The concentration of eight heavy metals Cr, Mn, Co, Ni, Cu, Zn, Cd and Pb on dust of street, household, restaurant, top of leaves and five soil samples of Calcutta city are measured by Atomic Absorption Spectrometry (AAS) and Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The available metals of dust samples in 0.07 N (HCl) are also measured by AAS. The Electron Probe Micro Analysis (EPMA) is also made to characterize individual aerosol particles collected on Nuclepore membrane filter.