Heavy metal determination from soil surface near a construction site / Mohammad Syahirul Aiman Jusoh

This study aimed to determine the concentration of selected heavy metals
(Cd, Cr, Pb, Zn) in urban soil samples of new large shopping place in
Bandar Tun Abdul Razak Jengka. A total of 15 samples were collected from
five sampling points. This study also aimed to evaluate health risk
assessment (HRA) of heavy metals on adults from different pathways. All
of the concentration of heavy metal selected lie above control soil which are
Cd (0.011 mgkg-1), Cr (0.28 mgkg-1), Pb (0.33mgkg-1) and Zn (0.21 mgkg-
1). Hazard Index (HI) and Lifetime Cancer Risk (LCR) were used to
determine both non-carcinogenic and carcinogenic risks. The HRA found
to be at the safe level indicating no non-carcinogenic and carcinogenic risks
that may affect human health. Further study should be done to evaluate
other metal element such as As and Cu that may contribute to human health
problem due to high concentration accumulated.