文章基本信息

标题：Health Risks of Heavy Metals in selected Food Crops cultivated in Small-scale Gold-mining Areas in Wassa-Amenfi-West District of Ghana
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作者：Musah Saeed Zango ; Maxwell Anim-Gyampo ; Boateng Ampadu 等
期刊名称：Journal of Natural Sciences Research
印刷版ISSN：2225-0921
电子版ISSN：2225-0921
出版年度：2013
卷号：3
期号：5
页码：96-105
语种：English
出版社：The International Institute for Science, Technology and Education (IISTE)
摘要：An assessment of heavy metals (Pb, Cu, Zn, Ni, and Cd) in soils, Cassava (Manihot esculenta crantz) and plantain (Musa paradisiacal) was conducted in Wassa-Amenfi-West District, a small-scale gold-mining area in Ghana. Metal levels in soil samples were within the permissible limits of Indian and EU standards even though, the Pollution Load Index (PLI) revealed significant metal loading. PLI values were 26.35, 4.81, 54.18, 2.01 and 1.55 for Cd, Ni, Pb, Zn and Cu, respectively. Metals in food crops were higher than in soils, with ranges of 19.63-53.93, 19.45-142.39, 99.42-357.15, 27.01-76.21, and 1.42-5.84mg/kg for Ni, Cu, Zn, Pb and Cd, respectively. Pb, Cd, Zn and Cu in plantain exceeded FAO/WHO recommended values while in cassava, Pb, Cd and Zn exceeded recommended levels. Analysis of daily intake of metals (DIM) and health index (HRI) for cassava and plantain showed that local inhabitants were not safe and were at risk of potentially long term health effects from dietary Pb, Cd, Ni, Cu and Zn.
关键词：Cassava; Ghana; Heavy metals; health risk; Plantain; Wassa-Amenfi-West