نوع مقاله : مقاله علمی- پژوهشی
عنوان مقاله English
نویسندگان English
Sardehat Jafari Landfill has been the burial place of the mineral wastes of Roy Zanjan since 2019. According to the environmental issues and according to the soil protection law, it is necessary to monitor the concentration of heavy elements around this landfill. The purpose of this study was to investigate the effect of Sardehat Zanjan landfill on the contamination of the soils around the landfill area with zinc and nickel elements. Based on this, the total and accessible concentration of zinc and nickel elements as well as some pollution indicators including pollution coefficient (CF), Degree of contamination (Cdeg), PLI load, Available Ratio (AR) and Geo-accumulation Index (Igeo) . Based on the standard methods of the Environmental Protection Organization, a total of 150 soil samples were selected and collected from the area around the landfill at a distance of 0, 250, 500 and 1000 meters. The reference soil sample was located 3 km away from the landfill. Inverse weighting method was used for zoning the measured factors. The highest concentration of total soil zinc and nickel was 155 and 10.58 mg/kg, respectively. The pollution factor (CF) for both elements is 1 and the degree of pollution (Cdeg) and PLI load) are equal to 0.2 and 0.98, respectively, and the Geo-accumulation Index (Igeo) for zinc and nickel elements are -0.62 and -0.76, respectively. The results showed that the total and absorbable concentration of zinc and nickel was lower than the permissible limit reported by Iran's environmental organization, and the 3-year activity of Sardehat landfill had no significant effect on the total and absorbable concentration and soil pollution indicators.
کلیدواژهها English