Hailu, Amare (2007) Metal Concentration in Vegetables Grown in Northern Addis Ababa and Part of Rift Valley (Ziway), Ethiopia. Masters thesis, Addis Ababa University.
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Abstract
Vegetable samples were collected from northern Addis Ababa and Ziway where there were no industrial contaminations. The samples where collected in May, 2007 and the concentrations of heavy metals (Cd, Cr, Pb and Zn) were determined using flame atomic absorption spectrophotometer. The total metal concentration of the soil and the water used for irrigation were also determined. The concentration of lead obtained from the majority of the vegetable farms in northern Addis Ababa and Ziway surpassed the maximum recommended limit of the metal in the vegetable tissue. The average concentration of lead in Lettuce, Swiss chard, Ethiopian kale were found to be 0.97 mg/kg, 0.3 mg/kg, 0.54 mg/kg and 0.4 mg/kg dry weight, respectively. Although the high concentration of the other metals in the soil does not reach the toxicity level. There is a possibility of contaminant in the soil of a vegetable farm where there is minor industrial contribution.
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture |
| Divisions: | Africana |
| Depositing User: | Selom Ghislain |
| Date Deposited: | 19 Jun 2018 14:03 |
| Last Modified: | 19 Jun 2018 14:03 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/4714 |
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