Indiscriminate handling and disposal of industrial effluents into the environment represents one of the major sources of environmental pollution which invariably affect plants, animals and humans. This study assessed heavy metal concentration in soils and plants around industries in Agbara industrial estate, Ogun State, Nigeria. Soil and plant samples were collected from four industries and analyzed for lead (Pb), cadmium (Cd), copper (Cu), chromium (Cr) and nickel (Ni). The pH, organic matter content and cation exchange capacity of the soil samples, as well as bioaccumulation factor (BAF) and translocation factor (TF) of the plant samples were examined. The heavy metal concentration order of the soil and plant samples was Pb ?1, 50 mg kg?1, 10 mg kg?1 and 50 mg kg?1 respectively) while Cd was above WHO tolerance limit (3 mg kg?1). Also, Pb, Cd, Cu, and Cr in most plant samples were above WHO tolerance limits (10 mg kg?1, 0.30 mg kg?1, 10 mg kg?1 and 1.5 mg kg?1 respectively). Statistical differences (P Cyperus iria, Alternanthera sessilis, C. esculentus, A. brasiliana, and Megathyrsus maximus are probable accumulators of heavy metals.
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机译:老工业搬迁区土壤重金属污染特征及潜在生态风险—以沉阳铁西老工业区为例Characters and Potential Ecological Risks of Heavy Metals in Soil of Chinese Brownfield Redevelopment Site—Case of Tiexi Old Industrial Area, Shenyang City