Plant Soil Environ., 2010, 56(6):288-296 | DOI: 10.17221/16/2010-PSE

Spatial distribution and mapping of risk elements pollution in agricultural soils of southern Tehran, Iran

A. Hani1, E. Pazira2, M. Manshouri3, S. Babaie Kafaky1, M. Ghahroudi Tali4
1 Department of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 Faculty of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad University, Tehran, Iran
3 Department of Water Sciences and Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
4 Geography Department, Tarbiat Moalem University, Tehran, Iran

In order to evaluate risk elements and their spatial distribution in agricultural fields south of Tehran, statistics, geostatistics and geographic information system (GIS) were used. The content of Hg, As, Pb, Mo, and Be were determined in 106 samples. The results showed that primary inputs of As and Hg were due to anthropogenic sources, while Pb, Mo and Be were associated with pedogenic and anthropogenic factors. Ordinary kriging was carried out to map the spatial patterns of risk elements and disjunctive kriging was used to quantify the probability of risk elements concentrations higher than their guide value. The results show that As, Hg, Mo and Be exhibit pollution risk in the study area. The high pollution sources evaluated were related with usage of urban and industrial wastewater for agricultural practice. The results of this study are helpful for risk assessment of environmental pollution for decision making for vegetable production and ecosystem improving.

Keywords: geostatistics; multivariate statistical analysis; risk elements; agricultural soil; Tehran

Published: June 30, 2010  Show citation

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Hani A, Pazira E, Manshouri M, Babaie Kafaky S, Ghahroudi Tali M. Spatial distribution and mapping of risk elements pollution in agricultural soils of southern Tehran, Iran. Plant Soil Environ.. 2010;56(6):288-296. doi: 10.17221/16/2010-PSE.
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