Heavy metals contamination in wheat (irrigated and rainfed) in the farms of Hamadan

Subject Areas : environmental management

Bahareh lolerstani ¹ , Zeynab sadat hazavehi ²

1 - - Assistant Professor, Department of Environment, Islamic Azad University, Hamedan Branch, Hamedan, Iran
2 - Graduate Student, Departmenet of Environment, Islamic Azad University, Hamedan Branch, Hamedan, Iran

Received: 2014-05-18 Accepted : 2014-11-22 Published : 2014-12-22

Keywords: Heavy Metals, wheat, Wheat farming, Hamedan city,

Abstract :

Background and Objectives: Heavy metals contamination of soil and agricultural products due to the rapid development of industries and improper use of chemical fertilizers and manure on agricultural land have cuased a great concern. The purpose of this study was to investigate the accumulation of heavy metals such as cadmium, lead and zinc in soils and in irrigated wheat and rainfed wheat in some farms in Hamadan city.  Materials and Methods: Soils under cultivation of wheat (irrigated and rainfed) was sampled. Composite soil samples were taken from a depth of 0-20 cm. The location of the sampling stations was recorded by GPS. The composite samples were collected edible sections of the mentioned plants. Absorbent concentrations of heavy metals were extracted using DTPA. The experiments were done independently in the form of a completely randomized design with three replications. Concentrations of heavy metals (lead, zinc and cadmium) were read using an ICP varion 710 in the laboratory of Islamic Azad University of Hamedan. Results: Statistical analysis showed that the mean concentrations of cadmium in the soil of irrigated and rainfed wheat were4/61, 1/60 mg/kg and in the plant of irrigated and rainfed wheat were 2/29, 1/86 mg/kg, with a significant difference of 0/05. The mean concentrations of lead in the soil of irrigated and rainfed wheat were 4/61, 1/60 mg/kg respectively, and in the plant of irrigated and rainfed wheat they were 12/26, 12/84 mg/kg respectively, showing a significant difference of 0/05. The amounts of zinc in the soil of irrigated and rainfed wheat were 32/12, 21/26 mg/kg respectively, and in the plant of irrigated and rainfed wheat they were 13/99, 11/58 mg/kg, showing no significant differences with the the permissable standards. Discussionand conclusions: The result showed the risk indices of over 1 for cadmium and lead, implying that these two elements can be of a greater potential threat to human health in the study area

References:

 

1. Alloway, B. J. 1995: Soil processes and the behaviour of metals". Blackie Academic and Professional, London. 11-37.


2. یارقلی، ب، عظیمی، ع، باغوند، ا، عباسی، ف، لیاقت، ع، فردی، ع، بررسی جذب و تجمع کادمیوم در اندام های مختلف محصولات غده­ای در خاک های آلوده، آب و فاضلاب،1388،4،60


3. Jalali, M. and Moharami, S. 2010 "Redistribution of cadmium, copper, lead. Nicel, and zinc among soil franctions in a contaminated calcareous soil after application of nitrogen fertiltizers." J. Plant Nutr. Soil Sci, 173: 37-244.


4. Jalali, M., Khanlari Z, V. 2008a "Environmental contamination of Zn. Cd, Nl, Cu. And Pb from areas in Hamadan Province, western Iran." Environ 55: 1537-1543.


5. Duruibe. J.O., Ogwuegbu, M. D. C. and Egwurugwu, J.N. 2007" Heavy metal Pollution anh Human biotoxic Effects." Int. J.Phyz. Sci.2: 112- 118


6. Ikeda, M., Zhang. Z.W., shimbo, S., watanabe, T., Nakatsuka, H., Moon, C.S., Matsuda – Inoguchi, N. and Higashikawa, K. 2000 " Urban population exposure to lead and cadmium in east and south – east Asia." Sci. Total Environ. 249: 373-384.


7. Duruibe. J.O., Ogwuegbu, M. D. C. and Egwurugwu, J.N. 2007" Heavy metal Pollution anh Human biotoxic Effects." Int. J.Phyz. Sci.2: 112- 118


8. Sims, J.T. 1996 "Lime requirement methods of soil analysis, parts chemical methods" Madision Wisconsin, USA. Pp: 491.


9. Carter. R 1993 "Crop and food chain effects of toxic elements in sludges and effects." Proceedings of the Joint Conference on Recycling Municipal Sludges and Effiuents on Land. National Association of State Universities and Land-Grant Colleges, Washington DC, pp. 129-141


10. Lindsay, W. L. and Norvell, W.A. 1978 "Development of a DTPA test for zinc, mangoncse, and copper." Soil Sci. Soc. Am. J. 42: 421-428.


11. Cao, H., Jianjiang, CH., Jun, ZH., Hui, ZH., Li, Q. and Yimen. 2010 "Heavy metals in rice and garden vegetables and their potential health risks to inhabitants in the vicinity of an industrial zone in Jiangsu, China." J. Envieon. Sci. 22 (11): 1729-1799


12. Cui, Y., Zhu, Y. G., Zhai, R., Huang, Y., Qiu, Y. and Liang, J.2005 "Exposure to metal mixtures and human health impacts in a contomintal area in Nanning china."


13. Ge, K. Y. 1992 "The status of nutvient and metal of Chinese in the 1990." Beijing people's Hygiene press. 415-434.


14. Wang, X., Sato, T., Xing, B. and Tao, S 2005 "Helth risks of heavy metals to the general buplic in Tianjin, China via consumption of vegetables and fish." Sci. Total


15. USEPA, 2002 USEPA US Environmental Protection Agency. "List of Drinking water contaminants and MCLs." Washington, DC; 2002.


16. Nabula, G., Young, S.D. and Black, C.R. 2010 "Assessing risk to human health from tropical leafy vegetables grown on soil amended with urban sewage sludge." Environ. Pollu. 159: 368-376.


17. Lin, J., Wuyi, W., Yonghua, L., and Linsheng., Y. 2010. Heavy Metals in Soil and Crops of an Intensively Farmed Area: A Case Study inYucheng City, Shandong Province, China. J. Environ. Res. Public Health 2010, v, 395- 412; doi: 10, 3390/ijerph 7020395.


18. Orisakwe, O, Kanayochukwu, N.J, Nwadiuto, A.C, Daniel, D and Onyinyechi,O, Evaluation of Potential Dietary Toxicity of Heavy Metals of Vegetables, Environment Analytic Toxicol, 2012, 2, 3


19. Eriksson,J.E. 2001" Concentrations of 61 trace elements in sewage sludge, faramyard manure, mineral fertilizers, perecipitation and in oil and crops". Swedish EPA. Rep 5159. Stockholrn.


20. Luo, Ch., Liu, Ch., Wang, Y., Lin, X., Li, F., Zhang, G. and Li, X. 2011 "Heavy metal contamination in woils and vegetables near on e-waste processing site, south China." J.Hazard. Mater. 186: 481-490.


21. Nabula, G., Young, S.D. and Black, C.R. 2010 "Assessing risk to human health from tropical leafy vegetables grown on soil amended with urban sewage sludge." Environ. Pollu. 159: 368-376.


22. معیاری، ا، 1390، تأثیر کشت های مختلف بر غلظت عناصر سنگین در خاک و گیاهان، پایان نامه کارشناسی ارشد دانشگاه بوعلی سینا


23. Eriksson,J.E. 2001" Concentrations of 61 trace elements in sewage sludge, faramyard manure, mineral fertilizers, perecipitation and in oil and crops". Swedish EPA. Rep 5159. Stockholrn.


24. Alloway, B. J. 1995: Soil processes and the behaviour of metals". Blackie Academic and Professional, London. 11-37.


25. Nabula, G., Young, S.D. and Black, C.R. 2010 "Assessing risk to human health from tropical leafy vegetables grown on soil amended with urban sewage sludge." Environ. Pollu. 159: 368-376.


26. Jamali, M. K., Kazi, T.G. Arain, M.B., Afridi, H. I. Jalbani, N. Kandhro, G.A, A.Q. and Baiga, J.A. 2009 "Heavy metal acceumulation in different  of wheat grown in soil amended J. Hazard. Mated. 164: 1386-1391.


27. معیاری، ا، 1390، تأثیر کشت های مختلف بر غلظت عناصر سنگین در خاک و گیاهان، پایان نامه کارشناسی­ارشد دانشگاه بوعلی سینا