- Alegría, A., Barberá, R., Boluda, R., Errecalde, F., Farré, R., and Lagarda, M.J.1991. Environmental cadmium, lead and nickel contamination: possible relationship between soil and vegetable content. Journal of Analytical Chemistry. 339: 654-57.
- Alexander, P.D., Alloway, B.J., and Dourado, A.M. 2006.Genotypic variations in the accumulation of Cd, Cu, Pb and Zn exhibited by six commonly grown vegetables. Environmental Pollution. 144: 736-45.
- Allen, S.E., Grimshaw, H.M., and Rowland, A.P.1986.Chemical analysis. In: Moore PD, Chapman SB, editors, Methods in Plant Ecology. Oxford: Blackwell Scientific Publication, London.
- Allowayو B.J., Thornton, I., Smart, G.A., Sherlock, J.C., and Quin, M.J.1988. Metal availability. Science of the Total Environment. 91: 223-36.
- Assistance of the human environment. Office of water and soil. Standards for quality of soil resources and its guides. In: editor.^editors. ed. Iran: Assistance of the human environment. Office of water and soil; 2014. p. 1-166.
- Burt, R. 2004. Soil survey laboratory methods manual, soil survey investigations, report No. 42, Version 4.0, USDA, Natural Resources Conservation Service, Lincoln, NE, USA.
- Chen, M., and Ma, L.Q.2001.Comparison of Three Aqua Regia Digestion Methods for Twenty Florida Soils. Soil Science Society of America Journal. 65: 491 –9.
- Cobb, G.P., Sands, K., Waters, M., Wixson, B.G., and Dorward-King, E.2000. Accumulation of heavy metals by vegetables grown in mine wastes. Environmental Toxicology and Chemistry.19: 600-7.
- Commision Regulation (EC) No 1881.2006.Setting maximum levels for criteria contaminations in foodstuffs.
- Cui, Y.J., Zhu, Y.G., Zhai, R.H., Chen, D.Y., Huang, Y.Z. 2004. Transfer of metals from soil to vegetables in an area near a smelter in Nanning, China. Environment International. 30: 785-91.
- Dastane, N.G.1987. Use of brackish waters in horticulture. Water Quality Bulletin. 12(2):64-71.
- Fergusson, J.E.1991.The Heavy Elements: Chemistry, Environmental Impacts and Health Pergamon Press: Oxford.
- Food Chemical Codex (FCC). 2001.Codex Alimentarius Commission (FAO/WHO). Food additives and contaminants. Geneva: Joint FAO/WHO Food Standards Program.
- Golchin, A., Esmailee, M., and Tookasi, M. 2005. Sources of soil contaminants and heavy metals in crops and garden Zanjan Province. Publication Management and Planning Organization of Zanjzn, 1-120.
- Institute of Standards and Industrial Research of Iran. Food and feed-maximum limit of heavy metals.Standard No. 12968. 2010.Tehran: Institute of Standards and Industrial Research of Iran .
- Lindsay, W.L., and Norvell W.A. 1978. Development of DTPA test for zinc, iron, manganese, and copper. Soil Science Society of American Journal. 42: 421-428.
- Mehrasbi, M., Sekhawatju, M., Hasanalizadeh, A.S., and Ramezanzadeh, Z. 2010. Study of heavy metals in the atmospheric deposition in Zanjan, Iran. Iranian Journal of Health and Environment. 2(4):240-49.
- Murray, H., Thompson, K., and Macfie, S.M. 2009. Site-and species-specific patterns of metal bioavailability in edible plants. Botany. 87: 702-11.
- Myung, C.J. 2008. Heavy metal concentrations in soils and factors affecting metal uptake by plants in the Vicinity of Korean Cu-W Mine. Sensors. 8(4): 2413-23.
- Orisakwe, O.E., Nduka, J.K., Amadi, C.N., Dike, D., and Obialor, O.O. 2012. Evaluation of potential dietary toxicity of heavy metals of vegetables. Journal of Environmental and Analytical Toxicology. 2(3).
- Oyedele, D.J., Obioh, I.B., Adejumo, J.A., Oiuwole, A.F., Aina, P.O., and Aubiojo O.I.1995. Lead contamination of soils and Vegetation in the Vicinity of a lead smelter in Science of The Total Environment. 17(32): 189-195.
- Peris, M., Micó, C., Recatalá, L., Sánchez, R., and Sánchez, J. 2007. Heavy metal contents in horticultural crops of a representative area of the European Mediterranean region. Science of The Total Environment. 378(1-2): 42-48.
- Romheld, V., and Marschner, H. 1991. Function of micronutrients in plants. In: Mortvdet JJ, editors.Micronutrients in Agricultural.Soil Science of America. Inc., Madison. WI.
- Salama, A.K., and Radwan, R.M. 2005. Heavy metals (Cd, Pb) and trace elements (Cu, Zn) contents in some foodstuffs from the Egyptian market. Emirates Journal of Food and Agriculture. 17(1): 34–42.
- Sharma, R.K., Agrawal, M., and Marshall, F.M. 2008. Heavy metals (Cu, Cd, Zn and Pb) contamination of vegetables in Urban India: a case Study in Varanasi. Environmental pollution.154: 254–63.
- Singh, J.P., Karwasra, S.P.S., and Singh, M. 1988. Distribution and forms of copper, iron, manganese, and zinc in calcareous soils of India. Soil Science. 146:359-66.
- Sing, A., Sharma, R.K., Agrawal, M., and Marshall, F.M., 2010. Risk assessment of heavy metal toxicity through contaminated vegetables from waste water irrigated area of Varanasi, India. Tropical Ecology. 51(2S): 375-387.
- Sipter, E., Rozsa, E., Gruiz, K., Tatrai, E., and Morvai, V. 2008. Site-specific risk assessment in contaminated vegetable gardens. Chemosphere.71: 1301-7.
- Zheng, N., Wang, Q., and Zheng, D. 2007. Health risk of Hg, Pb, Cd, Zn and Cu to the inhabitants around Huludao zinc plant in China via consumption of vegetables. Science of the total environment. 383: 81-9.
|