Lead and cadmium accumulation in medicinal plants collected from environmentally different sites.
Though use of herbal medicine is increasing dramatically worldwide, environmental pollution especially with heavy metals poses serious problem on quality of medicinal plants and their products. In Ethiopia, where more than 85% of the population relies on traditional medicine, data on heavy metals level of plants is unavailable. The purpose of this study was to assess Pb and Cd in plants grown in different parts of Ethiopia. Out of 26 samples analyzed, four for lead (15.4%; 11.56 +/- 1.07 to 98.19 +/- 1.05 mg/kg) and seventeen for cadmium (65.4%; 0.38 to 1.83 +/- 0.06 mg/kg) were found to contain concentrations above WHO limits (10 mg/kg and 0.3 mg/kg respectively).
Baye
Henok
H
Department of Pharmaceutical Chemistry, School of Pharmacy, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia. henbab12@yahoo.com
Hymete
Ariaya
A
D001673:Biodegradation, Environmental; D002104:Cadmium / Q000032:analysis*; D004777:Environment; D004784:Environmental Monitoring; D005002:Ethiopia; D007854:Lead / Q000032:analysis*; D010945:Plants, Edible / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013045:Species Specificity
D002104:Cadmium; D007854:Lead