Determination of common ions and heavy metals in bottled waters consumed in Ethiopia
| dc.contributor.advisor | Chandravanshi B.S. (Professor) | |
| dc.contributor.author | Assefa Mulugeta | |
| dc.date.accessioned | 2018-06-21T07:14:13Z | |
| dc.date.accessioned | 2023-11-09T16:17:43Z | |
| dc.date.available | 2018-06-21T07:14:13Z | |
| dc.date.available | 2023-11-09T16:17:43Z | |
| dc.date.issued | 2008-07 | |
| dc.description.abstract | Concentration of six trace elements, nine major ions and two physical parameters in six different brands of bottled water obtained from Ethiopia were investigated. For comparison purpose, sample of tap water from Addis Ababa was also analysed. Cd, Cu, Cr, Fe, Pb, Zn, Na, K, Mg and Ca contents of the drinking water samples were determined by FAAS. Concentrations of F-, Cl-, NO3-, SO42-and PO43- were determined by IC. The data showed the variation of the investigated parameters in water samples as follows: Fe 0.035-0.086 mg/L, Zn 0.088-0.334 mg/L, Na 2.77-48.03 mg/L, K 1.19-4.40 mg/L, Mg 1.30-3.42 mg/L, Ca 1.63- 11.59 mg/L, F- < 0.20-0.92 mg/L, Cl- 4.84-12.38 mg/L , NO3- < 0.42-8.38 mg/L, SO42- < 0.36- 10.26 mg/L pH 7.35-8.34 and EC 119.7-579.3 μS/cm. Cd, Cu, Cr, Pb and PO43- concentrations in all the drinking water samples were below the detection limit. Concentration levels of all the analysed trace metals and common ions investigated in all examined water samples were below the maximum contaminant level prescribed by WHO regulations. Some of the physical parameters, pH and electrical conductivity were determined. pH in all the samples was with in the permissible limit of WHO drinking water quality guidelines. Key Words: FAAS, IC, Bottled Water, Metal, Common Anions, Physical Parameters | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/2517 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa Universty | en_US |
| dc.subject | FAAS; IC, Bottled Water; Metal; Common Anions; Physical Parameters | en_US |
| dc.title | Determination of common ions and heavy metals in bottled waters consumed in Ethiopia | en_US |
| dc.type | Thesis | en_US |