Investigation of metal pollution in Moryayla (Erzurum) and surrounding stream sediments, Turkey

Abstract

The enrichment factor (EF), geochemical index (Igeo), pollution factor (Cf), and pollutant load index (PLI) were calculated using average shale metal concentration values to determine metal pollution in Moryayla and surrounding stream sediments. It was determined that the average concentration values are above the world average shale values. According to the results obtained, the mean accumulation levels of heavy metals in the study area were Mn>Zn>Cu>Pb>As>Cr>Ni>Sb. Considerable degree of enrichment was observed because the elements As, Cu, and Pb are at EF>5 at locations 47, 53, 70, and 71. The values obtained from the Igeo, Cf, and PLI are a wide range of pollutants (from unpolluted to moderately polluted to extremely polluted to) for the various elements studied.