Source Identification and Distribution of Toxic Trace Metals in Respirable Dust (PM10) in Brasscity of India

Abstract

This study assessed the concentration of PM10 and trace metals at six sites with different land uses during the period of one year Metals concentrations of PM10 were analyzed using ICP-OES Highest concentrations of PM10were recorded in winter and lower in monsoon at all the study sites The concentrations of trace metals in PM10 were observed in the following order Zn Fe Cu Al Pb Cr Mn Cd Ni Overall concentration of PM10 and heavy metals was found highest at industrial sites than the vehicular commercial and residential sites shows the greater contribution of industrial and combustion process Univariate correlation study and Multivariate statistical analysis were adopted including factor analysis and enrichment factor analysis to identify the sources and their contribution to PM10 The major source of airborne trace metals identified were brassware industries illegal e-waste burning automobile emissions and combustion processes