Spatial distribution and mapping of risk elements pollution in agricultural soils of southern 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 an...

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Published inPlant, soil and environment Vol. 56; no. 6; pp. 288 - 296
Main Authors Hani, A., Pazira, E., Manshouri, M., Babaie Kafaky, S., Ghahroudi Tali, M.
Format Journal Article
LanguageEnglish
Published Czech Academy of Agricultural Sciences 01.01.2010
Subjects
agricultural soil
geostatistics
multivariate statistical analysis
risk elements
tehran
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Summary: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.
ISSN:1214-1178
1805-9368
DOI:10.17221/16/2010-PSE