Levels of some heavy metals in cassava and plantain from farmlands in Kaani and Kpean in Khana Local Government Area of Rivers State.

Journal of Applied Sciences and Environmental Management

DIGHI, N.K.¹  JAMES, R.¹  KALAGBOR, IHESINACHI A.¹ 

关键词: Cassava;    Plantain;    Kaani;    Kpean;   

DOI  :  

学科分类：环境科学（综合）

来源: University of Port Harcourt * Department of Pure and Industrial Chemistry

【 摘 要 】

The concentrations of heavy metals (Ni, Zn, Cu, Pb and Fe) were determinedin cassava and plantain from farmlands in kaani and Kpean Communities in Khana LocalGovernment Area of Rivers State, Nigeria. Samples were collected, prepared, digested andanalyzed using AAS. The levels of heavy metals obtained for cassava samples from Kaaniwere Ni (5.71 mg/kg), Cu (2.45 mg/kg), Fe (92.4 mg/ kg), Pb (6.57 mg/kg), Zn (9.64 mg/kg)and for plantain samples; Ni (4.31 mg/kg), Fe (59.8 mg/kg), Cu (1.89 mg/ kg), Pb (3.69mg/kg), Zn (7.04 mg/kg) were recorded. The levels of heavy metals obtained for samplesfrom Kpean were Ni (4.09 mg/kg), Cu (9.64 mg/kg), Fe (6.34 mg/ kg), Pb (13.44 mg/kg), Zn(0.22 mg/kg) for cassava and Ni (10.23 mg/kg), Cu (18.53 mg/ kg), Fe (30.50 mg/kg), Pb(39.18 mg/kg), Zn (9.25 mg/kg) for plantain. Results showed that the levels of these heavymetals Ni, Cr, Cu, Pb and Fe in these food crops were found to be relatively high whencompared with FAO/WHO recommended values with crops from Kpean farms having highervalues. The most essential element Zn was found to have values below the acceptable limitsfor cassava and plantain from both farmlands.

【 授权许可】

Unknown