نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانش آموخته کارشناسی ارشد محیط زیست دانشگاه صنعتی اصفهان
2 استادیار گروه محیط زیست دانشکده منابع طبیعی دانشگاه صنعتی اصفهان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Studying concentration distribution of heavy metals is necessary for soil pollution monitoring and maintaining environmental quality. This study maps the spatial distribution of concentrations of heavy metals, namely, copper, chromium, arsenic, and antimony in an area of 19,546 km2, in Hamedan Province. For this purpose, by using a systematic stratified random sampling, 286 samples of surface soil (0-20 cm) were collected and total element concentrations and soil characteristics including pH, organic matter, percent clay, silt, and sand were measured. Zoning map of the concentration of antimony, copper, and chromium were obtained by using ordinary kriging and exponential model, while for arsenic ordinary kriging and spherical model were used. Analysis of zoning map of these heavy metals, land use map, and geological maps showed that arsenic, antimony, copper, and chromium are of geological origin.
کلیدواژهها [English]