Science Journal of Environmental Engineering Research, Volume 2012, November 2012
© Author(s) 2012. This work is distributed under the Creative Commons Attribution 3.0 License.
An Assessment of Soil Heavy Metal Pollution by Various Allied Artisans in Automobile , Welding Workshop and Petrol Station in Lagos State, Nigeria
Department of Botany, Faculty of Science, Lagos State University, Ojo, Lagos Nigeria
Department of Zoology and Environmetal Biology, Faculty of Science, Lagos State University, Ojo, Lagos Nigeria
Department of Zoology and Environmental Biology, Faculty of Science, Lagos State University, Ojo, Lagos Nigeria
Accepted 26 October, 2012; Available Online 8 November 2012
Levels of some agricultural pollutants, heavy metals ( Cd, Cr, Cu, Ni, Pb Zn,) were investigated in the soils, stems, roots, and leaves of Water leaf (Talinum triangulare) obtained from a filling station,mechanic workshop and welding workshop in Lagos state. Concentration levels of the metals were determined using atomic absorption spectrophotometer. Variations of the metals in the T.triangulare and soils were in the order: Zn >Lead > Chromium > Copper > Nickel > Cadmium The results obtained showed levels of the metals in soils and vegetables from the sample areas, automobile workshop,weldind aaaworkshop and petrol station which are indications of possible pollution of the sample areas as a result of excessive usage of the locations by activities of the artisans and spills from the filling station. The results were below the permissible levels recommended by United States Environmental Protection Agency and World Health Organization except for Lead in the welding workshop. Therefore consumption of T. triangulare as food in the three locations except the welding workshop may not pose health hazards to humans at the time of the study.
Heavy metals, pollution, Talinum triangulare L) Artisans workshops, Lagos Nigeria.