[1] Censi, P., Spoto, S.E., Saiano, F., Sprovieri, M., Mazzola, S., Nardone, G., Di Geronimo, S.I., Punturo, R. and Ottonello, D. (2006) Heavy Metals in Coastal Water System. Chemosphere, 64, 1167-1176.
http://dx.doi.org/10.1016/j.chemosphere.2005.11.008
[2] Gazso, L.G. (2001) The Key Microbial Processes in the Removal of Toxic Metals and Radionuclides from the Environment. A Review. Central European Journal of Occupational and Environmental Medicine, 7, 178-185.
[3] Marmiroli, N. (2003) Accumulation of Copper and Zinc from Liquid Manure in Agricultural Soils and Crop Plants. Plant and Soil, 250, 249-257.
[4] Zayed, A., Lytle, C.M., Qian, J.H. and Terry, N. (1998) Chromium Accumulation, Translocation and Chemical Speciation in Vegetable Crops. Planta, 206, 293-299.
http://dx.doi.org/10.1007/s004250050403
[5] Carpenter, S.R., Caraco, N.F., Correll, D.L., Howarth, R.W., Sharpely, A.N. and Smith, V.H. (1998) Nonpoint Pollution of Surface Waters With Phosphorus and Nitrogen, Ecological Applications, 8, 559-568.
http://dx.doi.org/10.1890/1051-0761(1998)008[0559:NPOSWW]2.0.CO;2
[6] Demayo, A., Taylor, M.C., Taylor, K.W. and Hodson, P.V. (1982) Toxic Effects of Lead and Lead Compounds on Human Health, Aquatic Life, Wildlife Plants, and Livestock. Critical Reviews in Environmental Control, 12, 257-305.
http://dx.doi.org/10.1080/10643388209381698
[7] Aigbedion, L.N. (2005) Environmental Pollution in the Niger Delta, Nigeria. Inter Disciplinary Journal Enugu Niger, 3, 205-210.
[8] EEC, Economic European Communities (2006) The Council Directive 86/278/EEC on Protection of the Enviro nment.
[9] EEC, Economic European Communities (2006) Setting Maximum Levels for Certain Contaminants in Foodstuffs. Official Journal European Communities, L 364/5-L 364/24, Directive No. 1881/2006, Brussels.
[10] U.S. EPA. (Environmental Protection Agency) (2006) Risk Assessment Guidance for Superfund Volume I: Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment), Final. EPA/540/R/99/005. Office of Solid Waste and Emergency Response, Washington, DC. PB99-963312.
[11] (Perkin-Elmer Corperation. 1991-1999) Perkin-Elmer Corp.: 1964-2000, Analytical Methods for Atomic Absorption Spectrophotometry & Recommended conditions for THGA furnaces.