Journal of Geochemical Exploration, Volume (147), No (147), Year (2014-12) , Pages (268-276)

Title : ( Ecological risk of heavy metal hotspots in topsoils in the Province of Golestan, Iran )

Authors: Rouhollah Mirzaei , Hadi Ghorbani , Nasser Hafezi Moghaddas , José Antonio Rodríguez Martín ,

Citation: BibTeX | EndNote

Abstract

Human activities, such as agriculture or mining, are a continuous source of risk for heavy metal pollution that seriously disturbs the soil environment. Massive efforts are being made to identify the tools to determine indicators of soil quality condition. This study characterises and evaluates the heavy metal (Cd, Cu, Ni, Pb and Zn) contents in the Province of Golestan (northern Iran). Pollution was assessed using the pollution index (PI) and the integrated pollution index (IPI). The potential harmful effects of these heavy metals were evaluated by the Potential Ecological Risk Index (PERI) Method. Kernel density estimation (KDE) and Local Moran's I were used for the hotspot analysis of soil pollution from a set of observed hazard occurrences. In all, 346 topsoils were examined, which represent three areas, approximately including the middle-south, west and north-east areas in this region. The heavy metal concentrations in the analysed samples did not generally present high values, despite anthropic heavy metal input. However, the potential ecological risk indexes (RI) indicated that approximately 68% and 5% of the study samples had medium and high pollution levels, respectively. Multiple hotspots for the above five heavy metals were located in the middle-south and west study areas. This anthropic heavy metal input is related to mining, agricultural practices and vehicle emissions. It was concluded that a moderate and high potential ecological risk covered about 90% of this province. In contrast, the natural origin input became more marked on a long spatial scale.

Keywords

Trace elements; Spatial variation; Surface soil; Metal pollution assessment
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1044678,
author = {Rouhollah Mirzaei and Hadi Ghorbani and Hafezi Moghaddas, Nasser and José Antonio Rodríguez Martín},
title = {Ecological risk of heavy metal hotspots in topsoils in the Province of Golestan, Iran},
journal = {Journal of Geochemical Exploration},
year = {2014},
volume = {147},
number = {147},
month = {December},
issn = {0375-6742},
pages = {268--276},
numpages = {8},
keywords = {Trace elements; Spatial variation; Surface soil; Metal pollution assessment},
}

[Download]

%0 Journal Article
%T Ecological risk of heavy metal hotspots in topsoils in the Province of Golestan, Iran
%A Rouhollah Mirzaei
%A Hadi Ghorbani
%A Hafezi Moghaddas, Nasser
%A José Antonio Rodríguez Martín
%J Journal of Geochemical Exploration
%@ 0375-6742
%D 2014

[Download]