Health Risk Assessment of Heavy Metals Accumulated on PM_2.5 Fractioned Road Dust from Two Cities of Pakistan.

ABSTRACT: The aim of this study is to identify and investigate levels of toxic heavy metals in PM_2.5 fractioned road dust to better understand the associated inhalation risk and potential health impacts. To achieve this aim, concentrations of seven traffic generated heavy metals (Cu, Pb, Zn, Cd, Ni, Sb, and Cr) were determined in the PM_2.5 fraction of road dust samples from four different locations (offices, residential, hospital, and school) in two cities (Karachi and Shikarpur) of Pakistan using ICP-MS. The average concentration values of heavy metals in Karachi were as follows: 332.9 mg/kg Cu, 426.6 mg/kg Pb, 4254.4 mg/kg Zn, 62.3 mg/kg Cd, 389.7 mg/kg Ni, 70.4 mg/kg Sb, 148.1 mg/kg Cr, whereas the average concentration values of heavy metals in Shikarpur were 245.8 mg/kg Cu

SUBMITTER: Moryani HT 

PROVIDER: S-EPMC7579555 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature