Ecological risk assessment and source apportionment of heavy metal contamination in agricultural soils of Northeastern Iran

被引：81
作者：
Keshavarzi, Ali [1 ]
Kumar, Vinod [2 ]
机构：
[1] Univ Tehran, Dept Soil Sci, Lab Remote Sensing & GIS, Karaj, Iran
[2] DAV Univ, Dept Bot, Jalandhar, Punjab, India
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH | 2019年 / 29卷 / 05期
关键词：
Agricultural soil; heavy metals; multivariate techniques; pollution indices; BASE-LINE CONCENTRATIONS; HEALTH-RISK; ORGANIC-MATTER; SURFACE SOILS; SPATIAL-DISTRIBUTION; HAZARDOUS ELEMENTS; GREENHOUSE SOILS; INDUSTRIAL ZONE; TRACE-ELEMENTS; URMIA LAKE;
D O I：
10.1080/09603123.2018.1555638
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The present work was designed to study the pH, sand, silt, clay, lime, organic carbon (OC), cation exchange capacity and heavy metals (Fe, Mn, Cu and Zn) in agricultural soils of Mashhad plain, Northeastern Iran. Pearson's correlation analysis showed that OC influenced the retention of Cu and Mn in both surface and subsurface agricultural soil samples. The results of contamination factor, pollution index and potential ecological risk (RI) indicated low pollution of Mn, Zn and Cu in the agricultural soil samples. The enrichment factor showed very high enrichment of heavy metals in surface (88.1%) and subsurface (79.1%) agricultural soil samples. The geoaccumulation index also indicated very high contamination of heavy metals in surface (87.5%) and subsurface (82.6%) soil samples. The modified potential ecological risk (MRI) showed 37.5% ecological risk in surface, and 32.5% ecological risk in subsurface soil samples of Mashhad plain, Northeastern Iran.
引用
收藏
页码：544 / 560
页数：17
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