Evaluating soil metallic pollution and consequent human health hazards in the vicinity of an industrialized zone, case study of Mubarakeh steel complex, Iran

Journal of Environmental Health Science Engineering

Nematollah Khorasani²  Amirhesam Hassani²  Faramarz Moattar²  Abdolreza Karbassi¹  Zohreh Ghaemi² 

[1] Graduate Faculty of Environment, University of Tehran, Tehran, P.O. Box 14155-6135, Iran;Department of Environmental Science, Graduate School of the Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran

关键词: Isfahan;    Mubarakeh steel complex;    Mobility;    Soil;    Metal pollution;   

Others  :  1230788
DOI  :  10.1186/s40201-015-0231-x

 received in 2013-07-03, accepted in 2015-10-13,  发布年份 2015

【 摘 要 】

Background

Being established in 1988 in the vicinity of Isfahan city, Mubarakeh Steel complex has imposed adverse environmental and health effects within the area. The study area is covered by lots of farms through which major crops like wheat and rice are provided.

Methods

Considering the imposed pollution load of the complex, the current study has monitored the concentration of metals Fe, Al, Cd, Cr, Ni, Pb, Cu, Zn, Mn, Co, Mo, As in 14 soil samples within the study area. Furthermore, human health hazards of mentioned metals due to consumption of domestic rice and wheat have also been evaluated through different scenarios. In order to evaluate the mobility of metals in soil samples the sequential chemical analysis is performed.

Results

Regarding the accumulation of metals in loose phases the order of metals bioavailability risk level is estimated to be as follows:

Co > Cd > Mo > Ba > As > Pb > Mn > Cu > V > Zn > Cr > Ni

Discussion

An index approach is also considered to evaluate the severity of metal contamination. Regarding geochemical accumulation index, only cadmium is detected to be in a moderately contaminated status while other metals declare an unpolluted condition. Index of pollution pays more attention to mobility potential of metals and accordingly detects metals Co, Mn, As, Pb, Cd, Ba and Mo to be in a moderately contaminated level. On the other hand, enrichment factor declares all toxic metals except for Co, Ba and V to be enriched.

Conclusions

Considering human health hazard assessment, except for Fe, Ba, Cu and Zn, all metals intakes in different scenarios are considered as hazardous while their CDI values are much more than the respective oral reference doses.

【 授权许可】

   
2015 Ghaemi et al.

【 图 表 】

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