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:: Volume 28, Issue 6 (Scientific Journal of Kurdistan University of Medical Sciences 2024) ::
SJKU 2024, 28(6): 33-47 Back to browse issues page
Evaluation of Pollution and Carcinogenic Risk of Heavy Metals in Agricultural Soil, Wheat and Flour in Bijar City
Mahdieh Mohammadi1 , Mostafa Leili 2, Alireza Rahmani3 , Mohammad Khazaei3
1- Department of Environmental Health Engineering, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.
2- Department of Environmental Health Engineering, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran , mostafa.leili@gmail.com
3- Department of Environmental Health Engineering, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
Abstract:   (866 Views)
Background and Aim: The purpose of this study was to investigate the level of pollution and concentration of heavy metals in agricultural soil, wheat and flour and to evaluate the consequent health risks in the residents of Bijar city in 2021.
Materials and Methods: To determine the total content of heavy metals, after acid digestion, the dry soil samples were converted into powder and prepared according to the steps of acid digestion for reading by graphite furnace atomic absorption spectrometry (GFAAS). Extraction from the samples was also done by acid digestion method. In the flour sample, direct acid digestion was done. For non-carcinogenic risk assessment studies, two routes including direct consumption (ingestion) and dermal absorption of heavy metals were considered. To calculate carcinogenic and non-carcinogenic risks, we considered heavy metals including cadmium, lead, zinc and arsenic.
Results: The concentrations of heavy metals studied in the soil, wheat and flour samples of four regions were similar to one another and no significant differences were observed. The results of the risk assessment showed that the soil samples of all four studied areas were in class III (moderate risk) in regard to the carcinogenic risk of arsenic. Also, the soil samples of all four regions showed a low cancer risk in relation to cadmium. All other samples showed a low risk less than 10-6. In all of the samples of flour, wheat and soil from the four regions, we found no risk higher than 10-4 and, thus they were considered safe.
Conclusion: The results of this study showed non-carcinogenic risk in relation to zinc, lead, arsenic, and cadmium based on the results of examined samples, but the concentration of some of these metals, such as arsenic, is close to the risk level for the vulnerable populations such as children, and appropriate measures should be taken to evaluate and reduce these heavy metals concentrations.
 
Keywords: Heavy metals, Health risk assessment, Soil, Wheat, Flour
Full-Text [PDF 1025 kb]   (217 Downloads)    
Type of Study: Original Research | Subject: Environmental Health Engineering
Received: 2022/09/8 | Accepted: 2023/02/20 | Published: 2024/02/6
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Mohammadi M, Leili M, Rahmani A, Khazaei M. Evaluation of Pollution and Carcinogenic Risk of Heavy Metals in Agricultural Soil, Wheat and Flour in Bijar City. SJKU 2024; 28 (6) :33-47
URL: http://sjku.muk.ac.ir/article-1-7551-en.html
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Volume 28, Issue 6 (Scientific Journal of Kurdistan University of Medical Sciences 2024) Back to browse issues page
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
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