Malak AbdRahman Seed AL- Ahmadi2022-05-192022-05-191166https://drepo.sdl.edu.sa/handle/20.500.14154/10058This study was carried out to investigate the impact of traffic activities on As, Co, Pb,V, Zn, K, Cr, Ir and Pd heavy metals ion concentration of roadside soil of Madinah city, Saudi. Surface and 20 cm under surface soil samples from 12 different sites were collected and analyzed. The measured concentrations of the four heavy metal ions were correlated to the traffic density which was monitored in roads near the sampling sitesenThesis