Assessment of Heavy Metals of Some Selected Medicinal Plant in Kwakwachi Fagge Local Government of Kano State, Nigeria

Obadahun.J, Okeh.Q, Shittu.K.J, Pascalina.P.L, Oludege.O.F and Omotola.M.B
Additional contact information
Obadahun.J: Department of Science Technology, Nigerian Institute of Leather and Science Technology (Nilest), Zaria, Kaduna State, Nigeria
Okeh.Q: Department of Science Technology, Nigerian Institute of Leather and Science Technology (Nilest), Zaria, Kaduna State, Nigeria
Shittu.K.J: Department of Science Technology, Nigerian Institute of Leather and Science Technology (Nilest), Zaria, Kaduna State, Nigeria
Pascalina.P.L: Department of Science Technology, Nigerian Institute of Leather and Science Technology (Nilest), Zaria, Kaduna State, Nigeria
Oludege.O.F: Department of Environmental Science and Resources Management, National Open University of Nigeria, Plot 91, Jabi, Abuja, Nigeria
Omotola.M.B: Directorate of Research N and Development, Ogun Centre, Nigerian Institute of Leather and Science Technology (Nilest), Zaria, Kaduna State, Nigeria

International Journal of Research and Scientific Innovation, 2020, vol. 7, issue 8, 80-82

Abstract: This study was carried out to assess the level of heavy metal content of five selected medicinal plants locally consumed in Kwakwachi Fagge local government of Kano state. The concentration of heavy metals (Pb, Cd, Cr, and As) were determined in Azadirachta indica (neem leaf), Vernonia amygdalina (bitter leave), Anacardium occidental (cashew leave), Citrus sinensis (orange) and Citrus limo (lemon) samples using Atomic absorption spectrophotometer. The concentration of the metals in all the medicinal plants were found to be Pb 1.84-5.12 mg/l, Cd 0.6-0.84 mg/l, Cr 0.24-0.6 mg/, As 1.6-10.2 mg/l. The result obtained from study showed that arsenic has the highest concentration in all the medicinal plants. The levels of the various heavy metals in the medicinal plant samples studied were found to be in order of As>Pb>Cd>Cr. The concentration of heavy metals in the plant samples exceeded the permissible limit of W.H.O (2006). The result indicates potential heavy metal risk as a result of the consumption of the mentioned traditional medicine in the study area.

Date: 2020
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