ASSESSl\'fENT OF LEVF:LS OF LEAD, CADMfC'.\1, COPPER AND  ZINC CONTAMINATION I!\ SELECTED F.DIBLE. VEGETARl.BS

Gebregziaber, Brhane

dc.contributor.author	Gebregziaber, Brhane
dc.date.accessioned	2018-06-26T04:59:11Z
dc.date.available	2018-06-26T04:59:11Z
dc.date.issued	2018-06-20
dc.identifier.uri	http://hdl.handle.net/123456789/8767
dc.description.abstract	The aim of this study was to measure the level of' ~envy metals in edible vegetables (tomato, ./ onion and green pepper) collected Irom Bahir Dar market, garden of Bahir Dur town and Ader Agricultural Research center (near Rcb River). Levels of Pb, Cd, Cu and Zn were determined using flame atomic absorption spectrometry after dry ashing process. The average concentrations of Pb. Cd, Cu and Zn were in the range of; 0.244 - 0.987, 0.115 - 0.536, 0.962 -3.430 and 2.344 ~ 4.136 mg/kg in tomato, 0.241- 0.43. 0.12- 0.441, 0.879-3.428 and 2.197- 3.259 mg/kg in oniori"imd 0.211- 0.392, 0.128- 0.573, 1.229-2.991 and 3.081-4.242 mg/kg in green pepper respectively. TI1c levels of those metals in all vegetables collected from the market site was higher than Adet Agricultural Research center but lower than garden in Bahir Dar rown, The highest concentration of 7.n in all vegetables of the. analyzed metals was prob'\ibly because it is considered as essential micronutricms for plants growth and can easily be taken up by plants 01· may be obtained from Ute water. Hie concentration of zinc and copper-were within WHO guideline in all analyzed samples, ,whit;; samples collected from the ma~ket and gardens of Bahir Dar town showed high increment in concentration of lead and	en_US
dc.language.iso	en_US	en_US
dc.subject	chemistry	en_US
dc.title	ASSESSl\'fENT OF LEVF:LS OF LEAD, CADMfC'.\1, COPPER AND ZINC CONTAMINATION I!\ SELECTED F.DIBLE. VEGETARl.BS	en_US
dc.type	Thesis	en_US