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The evaluation and determination of heavy metals pollution in edible vegetables, water and soil in the south of Tehran province by GIS

Authors :
Shirkhanloo Hamid
Mirzahosseini Seyed Alireza Hajiseyed
Shirkhanloo Nasrin
Moussavi-Najarkola Seyyed Ali
Farahani Hadi
Source :
Archives of Environmental Protection, Vol 41, Iss 2, Pp 64-74 (2015)
Publication Year :
2015
Publisher :
Polish Academy of Sciences, 2015.

Abstract

In this study, heavy metals pollutions in waters, soils and vegetables were investigated from farms, near oil refinery in south of Tehran city, Iran (Shahre Ray). The most important heavy metals in Iranian oil are vanadium, cobalt, nickel, arsenic and mercury (V, Co, Ni, As, Hg). In this region, the concentration of heavy metals in soils, well waters and leafy edible vegetables were evaluated in ten different points of farms. Geographic information systems (GIS) were used to estimate the levels of heavy metals concentration at unmeasured locations. After sample preparation, concentrations of heavy metals in vegetables, soils and waters were determined by atomic absorption spectrometry (AAS). Five different leafy edible vegetables from farms, i.e., Persian leek, dill, parsley, spinach and radish were sampled in spring, summer and autumn 2012. In vegetables and well water samples, the concentrations of V, Ni and Co were above the permissible limit of heavy metals as compared to WHO guidelines and the concentrations of these metals in agricultural soils were found to be lower in accordance to soil references. The industrial waste waters had high concentration of heavy metals in this area. In consequence, the results of this study indicate that industrial waste water can cause pollution in well waters and edible vegetables. So, this region is not suitable for cultivation and growing vegetables.

Details

Language :
English
ISSN :
20834810
Volume :
41
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Archives of Environmental Protection
Publication Type :
Academic Journal
Accession number :
edsdoj.228a0f6f179248e98aa1e2851c41475e
Document Type :
article
Full Text :
https://doi.org/10.1515/aep-2015-0020