Effects of Distance from Pollutant Sources on Heavy Metal Concentrations around Neka cement Factory Soil

Air pollution is one of anthropogenic aspect in 20th century especially cement factories have important role on air pollution. Pollutant material cement factories contain carbon bearing components, heavy metals, sulfur oxide, N oxide. This research aimed to investigate the heavy metal concentrations (Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni (in soil samples of Neka cement dust deposition. The sampling was done on October of 2012. For this aim, 4 sample points were chosen with 100, 400, 800 intervals of cement factory. The protected area from the pollutant material was selected as control point. To ensure of samples sufficiency in each sample point, 4 soil samples were collected.. Then samples were dried and measured for heavy metals concentrations using digestive method with ICP. Our results showed that there is a high level of heavy metal concentrations at 10 meters interval from factory and heavy metal concentrations decrease parallel to distance increase. Also in more cases, measuring of heavy metals concentration, is more than the world standard and this indicates the big polluting role of Neka cement factory. Between the studied elements, Co, Cr, Cu, Cd, Mn, Ni and Zn have most different rate compared with world standard.