Solgi Eisa, Esmaili-Sari Abbas, Riyahi-Bakhtiari Alireza
Department of Environment, Faculty of Natural Resources and Environment, Malayer University, P.O. Box 65719-95863, Malayer, Hamedan, Iran,
Bull Environ Contam Toxicol. 2014 Dec;93(6):710-5. doi: 10.1007/s00128-014-1408-1. Epub 2014 Oct 26.
This study assessed the baseline concentrations and spatial distribution of total mercury (Hg) in urban soils of the city of Arak, Iran. Concentrations of Hg were determined in soil collected from urban areas, and the spatial distribution was analyzed using the semivariogram approach in geostatistical technology. Mercury in soil ranged from 66.3 to 581 µg/kg. The experimental variogram of soil mercury concentrations was best-fitted by a spherical model. A spatial distribution map revealed that Hg concentration showed decreasing trends from south to north, west to east and center to suburb. Overall, the results showed that Hg concentrations in urban soils of Arak may be considered medium or low.
本研究评估了伊朗阿拉克市城市土壤中总汞（Hg）的基线浓度和空间分布。测定了从城市地区采集的土壤中的汞浓度，并使用地统计技术中的半变异函数方法分析了空间分布。土壤中的汞含量范围为66.3至581微克/千克。土壤汞浓度的实验变异函数最适合用球形模型拟合。空间分布图显示，汞浓度从南向北、从西向东以及从市中心向郊区呈下降趋势。总体而言，结果表明阿拉克市城市土壤中的汞浓度可被视为中等或低水平。
