9870

9107

كارشناسي ارشد

محيط زيست

اصفهان: دانشگاه صنعتي اصفهان، دانشكده منابع طبيعي

1393

سيزده، 68ص.: مصور، جدول، نمودار

ص.ع. به فارسي و انگليسي

محسن سليماني، عليرضا سفيانيان

مصطفي تركش اصفهاني

94/2/6

نوراله ميرغفاري، حسين مرادي

1396/09/26

كتابنامه

منابع طبيعي

مهندسي منابع طبيعي

ID9107

68 Spatial Distribution of Lead Cadmium and Nickel in Soils of Bakhtyardasht Region of Isfahan Zeynab Malekzadeh z malekzadeh1369@gmail com Date of Submission 13 January 2015 Department of Natural Resoursces Isfahan University of Technology Isfahan 84156 83111 Iran Degree MSc Language PersianSupervisor Dr Mohsen Soleimani email m soleimani@cc iut ac ir Supervisor Dr Alireza Soffianian email soffianian@cc iut ac ir Abstract Heavy metals are one of the most important soil contaminants due to their toxicity and non degradabilityin the environment Because of industrial development in Iran investigation of heavy metal pollution in soilsaround industrial region is essential The aim of this study was to evaluate the spatial distribution of lead Pb cadmium Cd and nickel Ni in the soil around Isfahan Oil Refinery and Power Plant of ShahidMontazeri Bakhtyardasht region of Isfahan The predominant wind direction of the study area was mappedusing software WRPLOT 15 soil samples from the West East transect and 10 soil samples from North South transect from 0 to 30 cm depth were collected Total and bioavailable amount of heavy metals weredetermined using Aqua regia and AB DTPA respectively Some soil characteristics such as electricalconductivity cation exchange capacity organic carbon lime and soil pH were also measured To interpretthe data correlation analysis principal component analysis and cluster analysis as well as geological maps land use the distance from the sampling sites and the smoke stacks of industries and road were used Comparison of heavy metal concentrations with maximum permitted values of Iranian EnvironmentalProtection Agency showed that Pb and Cd concentrations were in the range of standard values whereas Niconcentration was higher than the permitted value and the heavy metal contents in soils of two transectswere significantly different Factor and cluster analyses revealed that natural and anthropogenic factors mightcontrol the concentrations of Ni and Pb Cd in the area respectively The most important factor affectingbioavailability of the metals was lime content of the soil Spatial distribution of Pb and Cd in the area showedthe highest total and bioavailable contents of the metals were in the North South transect between themountains of Isfahan University of Technology Therefore topography and distance to industrial area couldaffect the soil metal content Overall the results of this study revealed that the soils of North South directionof the industrial region of Bakhtiardasht were more polluted with Pb and Cd than the soils of the otherdirection West East Keywords Heavy metals Principal component analysis Cluster analysis Soil pollution Industrial activities

محسن سليماني، عليرضا سفيانيان

مصطفي تركش اصفهاني

نوراله ميرغفاري، حسين مرادي