Effect of Sewage Irrigation on the Accumulation of Heavy Metals in Soil and the Associated Health Risks
Authors
1
Kashan University
2
Ardestan Azad University
Abstract
Water crisis as one of the fundamental problems in arid and semi-arid regions like Iran, has pushed for more use of urban waste in agricultural sector. In order to assess the consequences of urban wastewater application in agricultural practices, concentrations of heavy metals zinc, copper, cadmium, lead, chromium and nickel in the soil and corn seeds were studied. We also focused on pollution accumulation, plant transfer risk and health risk. For this, three farm soil textures were used for surface irrigation, irrigation with saline water, waste water and those irrigated for 6 years in Qom Province. Wastewater application decreased cadmium and lead and increased concentration of other metals. The maximum increase in concentration was seen for nickel (mg/L7) and the minimum for copper (mg/L 2.31), respectively. The soil accumulation index for Chrome and nickel was larger than other elements. In addition, the mean transfer indices in corn effluent treatment were 4.03, 3.03, and 0.15 for cadmium, lead and Chrome respectively. Also, Cr, Cd and Cu in corn grains irrigated with wastewater was higher than the permissible limit for human consumption. Pb Risk Index in Corn for all consumers and cadmium risk factor for children was greater than 1. According to the results, it seems that the health risk factor offers a more conservative estimate of the risk of heavy metals compared to its standard subject to further studies.
Keywords
امینی، ف.؛ میرغفاری، ن. و عشقی ملایری، ب. 1390. بررسی غلظت نیکل در خاک و تعدادی از گونه های گیاهی طبیعی اطراف معدن سرب و روی آهنگران در استان همدان. فصلنامه علوم و تکنولوژی محیط زیست، 13(1): 11-20.
بیگی هرچگانی، ح. و بنی طالبی، گ. 1392. اثر بیست وسه سال آبیاری سطحی با پساب شهری بر انباشت بعضی فلزات سنگین در خاک، انتقال به دانههای گندم و ذرت و خطرات بهداشتی مرتبط، نشریه آب و خاک (علوم و صنایع کشاورزی)، 27 (3) :580-570.
جلالی ع.؛ گلوی، م.؛ قنبری، ا.؛ رمرودی، م. و یوسف الهی، م. 1389 . اثر آبیاری با فاضلاب تصفیه شدهی شهری بر عملکرد و جذب فلزات سنگین در سورگوم علوفهای. نشریه علوم و فنون کشاورزی و منابع طبیعی 14 (52): 23-15.
صفری سنجانی، ع. 1374. پیامد آبیاری با پساب بر برخی ویژگیهای شیمیایی خاک ناحیه برخوار اصفهان و انباشتگی برخی عناصر در گیاه یونجه. پایان نامه کارشناسی ارشد خاکشناسی، دانشکده کشاورزی. دانشگاه صنعتی اصفهان.
موسویان، ن. 1386. بررسی تغییرات غلظت عناصر سنگین در اراضی مجاور شرکت فولاد آلیاژی ایران. پایان نامه کارشناسی ارشد، دانشکده منابع طبیعی، دانشگاه تهران.
هراتی، م.؛ تمدن رستگار، م.؛ حریری، ن .و وراویپور م.1389. اثرات استفاده از پسابهای شهری و مشکلات تجمع فلزات سنگین در اراضی کشاورزی (منطقهی جنوب شهر تهران)، کنگرهی چالشهای کود: نیم قرن مصرف کود در ایران، تهران، ایران 12-10.
Allen, H.E.; Huang, C.P.; Bailey, G.W. & Bowers, A.R. 1995. Metal Speciation andContamination of Soil. Lewis Publishers, USA.
Al-Hamaiedeh, H. & Bino, M. 2010. Effect of treated grey water reuse in irrigation on soil and plants. Desalination 256 (1–3), 115–119.
Arast, M.; Zehtabian, Gh.R.; Jafari, M.; Khosravi, H. & Jabalbarezi, B. 2016. Status and Evaluation of the Selected Soil Nutrients Irrigated by Unconventional water (Case Study: Qom), Pollution, 2(4): 399-409.
Chen, Z-F.; Zhao, Y.; Zhu, Y.; Yang, X.; Qiao J., Tianc, Q. & Zhang, Q. 2009. Health risks of heavy metals in sewage-irrigated soils and edible seeds in Langfang of Hebei province, China. Journal of Science Food Agriculture, 90:314-320.
Dal ferro, N.; Berti, A.; Mathews, P.; Giardini, L. & Morari F. 2010. Study of the Effect of Structure on Soil Aggregate Stability using 3D Network Model. Proceeding of World Congress of Soil Science, Soil Solutions for a changing world, 1-6 August 2010. Brisbane, Australia.
Darvishi, H.H.; Manshouri, M.; Farahani, H.A. 2010. The effect of irrigation by domestic wastewater on soil properties. J. Soil Sci. Environ. Manag. 1 (2), 030–033.
Engelhart, M.; Kruger, M.; Kopp, J. & Dichtl, N. 2000. Effect of disintegration on anaerobic degradation of sewage excess sludge in down flow stationary fixed film digesters. Water Science and Technology, 41:171-179.
Fu, Y.; Chen, M.; Bi, X.; He, L.; Xiang, W. & Qiao, Sh. 2011. Occurrence of arsenic in brown rice and its relationship to soil properties from Hainan Island , China. Environmental pollution, 159(7): 1757- 1762.
FAO/WHO.1984. List of contaminants and their maximum levels in foods. Codex Alimentarius Commission. Available at http://www.codexalimentarius.org.(visited on 10 November 2012).
Ganoulis, J. 2012. Risk analysis of wastewater reuse in agriculture. Int J Recycl Organ Waste Agric 1:3.
Jimenez, B. & Asano, T. 2008. International Survey onWater Reuse. International Water Association Publishing, ondon.
Kauser, S. 2007 .Water use in vegetable production in district Faisalabad (MSc Thesis) Department of Environmental and Resource Economics, University of Agriculture, Faisalabad, Pakistan.
Khan, S.; Cao, Q.; Zheng, Y.M.; Huang, Y.Z. & Zhu, Y.G. 2008. Health risks of heavy metals incontaminated soils and food crops irrigated with wastewater in Beijing, China. Environmental Pollution, 152:686-692.
Khalil, S. & Kakar, M.K. 2011. Agricultural use of untreated wastewater in Pakistan. Asian J. Agric. Rural Develop. 1, 21–26.
McNeill, L.S.; Almasri, M.N. & Mizyed, N. 2009. A sustainable approach for reusing treated wastewater in agricultural irrigation in the West Bank–Palestine. Desalination 248 (1–3), 315–321.
Moradmand, M. & Beigi Harchegani, H. 2011.Treated municipal wastewater irrigation effect on lead content and health risks of nickel in soil and pepper in Shahrekord, Iran. Desalination and Water Treatment, 28:42-45.
Munir, J.; Rusan, M.; Hinnawi, S. & Rousan, L. 2007. Long-term effect of wastewater irrigation of forage crops on soil and plant quality parameters. Soil Science Society of American Journal, 215:143-152.
Nelson, D.W. & Sommers, L.E. 1982. Total carbon, organic carbon and organic matter.In :Methods of Soil Analysis. Part 2, 2nd Ed., Agron. Monograph, Vol. 9. Agronomy Society of America and Soil Science Society of America, Madison, WI.
Pedrero, F. & Alarcon, J.J. 2009. Effects of treated wastewater irrigation on lemon trees. Desalination, 246:631– 639.
Qishlaqi, A.; Moore, F. & Forghani, G. 2008. Impact of untreated wastewater irrigation on soil and crops in Shiraz suburban area, SW Iran. Environmental Monitoring Assess, 141:257-273.
Rattan, R.K.; Datta, S.P.; Chhonkar, P.K.; Suribabu, K. & Singh, A.K. 2005. Long-term impact of irrigation with sewage effluents on heavy metal content in soils, crops and groundwater,a case study. Agriculture, Ecosystem and Environmen, 109:310–322.
Rhoades, J.D. 1982. Soluble salinity. In: Method of Soil Analysis. A.L. Page et al. (ed.). Part 2. Second ed. ASA and SSSA, Madison, WI. pp: 167-178.
Rusan, M.J.; Hinnawi, S. & Rousan, L. 2007. Long term effect of wastewater irrigation of forage crops on soil and plant quality parameters. Desalination 215, 143–152.
United Nations, 2003. Water for people, water for life. The United Nations World Water Development Report. UNESCO, Barcelona.
Tabari, M.; Salehi, A. & Ali-Arab, A.R. 2008. Effects of waste water application on heavy metals (Mn, Fe, Cr and Cd) contamination in a black locust stand in semi-arid zone of Iran. Research Journal of Environmental Science, 7 (4): 382-388.
West, L. 2006. World Water Day, A Billion People Worldwide lack Safe Drinking Water pp. 31–41
Wang, X.L.; Sato T.; Xing, B.S. & Tao S. 2005. Health risks of heavy metals to the general public in Tianjin, China via consumption of vegetables and fish. Science of the Total Environmental, 350:28–37.