标题：Quantitative Determination of the Heavy Metal Levels in the Wild Edible
Plant Parts and their Corresponding Soils of the Central and Western
Regions of the Oromia State, Ethiopia
期刊名称：Journal of Environmental & Analytical Toxicology
电子版ISSN：2161-0525
出版年度：2015
卷号：5
期号：5
DOI：10.4172/2161-0525.1000299
语种：English
出版社：OMICS International
摘要：This study was designed to assess the levels of selected metals (Pb, Cu, Zn, Cd, Ni, Cr and Ca) in wild edible plants and their corresponding soil samples by FAAS. A wet digestion procedure has been adopted to digest the plant and soil samples. The validity of the method was evaluated by spiking the sample with a standard of the selected metals. The levels of Pb, Cd, Ni, Cu and Cr were below detection limits in all the edible parts of the studied plants except in the root of Eriosema cordifolium where Ni and Cr were detected. Similarly, only Ni, Cu and Cr were detected in the soil samples of Eriosema cordifolium and Physalis peruviana plants. But, Zn, and Ca were detected in all the studied samples and varied in the range 31.3-157.5 and 24.4-6214.3 mg kg-1 in plants and 55.4-149.8 and 367.1-6032.3 mg kg-1 in soil samples, respectively. However, the value of selected metals in soils and plants sample were lower than the permissible limit recommended by European Union Standard and Joint FAO/WHO Expert Committee on Food Additives respectively with the exception of Zn in tuber of Pachyeymbium sacculatium plant.
关键词：Wild edible plant; FAAS; Heavy metals; Accumulation;
Uptake
