Human Health Risk Assessment of Heavy Metals in the Urban Road Dust of Zhengzhou Metropolis, China

The goal of this research is to assess hazardous heavy metal levels in PM2.5 fractioned road dust order quantify the risk inhalation and potential health effects. To accomplish this, Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) was used determine concentrations eight metals (Cr, Cu, Ni, Zn, Cd, As, Pb, Hg) portion samples from five different land use areas (commercial, residential, industrial, parks, educational) Zhengzhou, China. following were average city: Cr 46.26 mg/kg, Cu 25.13 Ni 12.51 Zn 152.35 Cd 0.56 As 11.53 Pb 52.15 Hg 0.32 mg/kg. Two pollution indicators, Pollution Index (PI) Geoaccumulation (Igeo), degree contamination. Both PI Igeo indicated extreme while also ranked polluted range. US Environmental Protection Agency (USEPA) model for adults children estimate risks by inhalation. results identified non-carcinogenic exposure lead (HI > 0.1) commercial industrial areas. Zhengzhou’s commercial, park are exposed higher copper (Cu), (Pb), zinc (Zn).