Rapid industrialization and modernization of urban cities has resulted to serious environmental contamination by metals, as a result the exposed inhabitants experienced health consequences. Therefore health risk assessment through multiple pathways is required for the health safety of the population. However, few studies to date estimate the health risk of heavy metals via different pathways on urban soils. Samples of urban soils were collected from urban environments of Petaling Jaya, and were analysed for As, Cd, Cr, Cu and Pb. The health risks for adults as a result of ingestion, dermal and inhalation exposure were then estimated. The results showed that the urban soils were polluted with these metals. This could be due to anthropoenic input. The concentration of the metals in soils follows the decreasing order Pb > As > Cr > Cu and Cd. Ingestion is the main route for exposure to heavy metals. Both the carcinogenic and non-carcinogenic risk values are within the permissible limits. Adults could be vulnerable to non-carcinogenic health risk (HI) on exposure to As in urban soil.
Keyword: health risk, heavy metals, soils, dusts
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