A general steadiness in the seasonal changes of nitrate and nitrite concentrations in potable surface and ground waters in the Onitsha metropolis was observed. Spectrophotometric analysis revealed that nitrate concentration values for the months of May 1990, August 1990, November 1990 and February 1
Occurrence of nitrate and nitrite in water and some alcoholic beverages in Nigeria
โ Scribed by Ezeagu, I. E.
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 325 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0027-769X
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โฆ Synopsis
Contents of nitrate and nitrite in several sources of domestic water supply, 8 branded lager beers, and only nitrate in palmwine is reported. Nitrate in water supplies varied from 0.23 mg/l in tap water to 50.0 mg/l in reservoir/stored water, and nitrite from 0.02 mg/l in stream water to 8.94 mg/l in well water. The results are compared to reported normal and lethal levels in drinking water. Nitrate in the beverages ranged from 22.5 mg/l in palmwine to 50.0 mg/l in beer, while nitrite in beer is between 0.26 and 9.53 mg/l. Levels of nitrate/nitrite in this study are not considered hazardous but their toxic effects are summarised.
Zusammenfassung
Vorkommen von Nitrat und Nitrit in Wasser und einigen alkoholischen Getranken in Nigeria Es wird uber den Nitrat-und Nitritgehalt verschiedener Quellen der Hauswasserversorgung, 8 handelsiiblicher Lagerbiersorten und uber den Nitratgehalt in Palmenwein berichtet. Der Nitratgehalt in der Wasserversorgung schwankte zwischen 0,23 mg/l im Zapfwasser und 50 mg/l in Reservoiren/ gespeichertem Wasser sowie zwischen 0,2 mg/l im fliel3enden Wasser und 8,94 mg/l im Brunnenwasser. Die Resultate wurden mit den berichteten Normalwerten und lethalen Werten irn Trinkwasser verglichen. Der Nitratgehalt in Getranken bewegte sich zwischen 22.5 mg/l im Palmenwein und 50,O mg/l im Bier, wahrend der Nitritgehalt im Bier zwischen 0,26 und 9,53 mg/l schwankte. Die Gehalte an Nitrat und Nitrit wurden als nicht gefahrlich bewertet, aber die toxischen Effekte zusammengefaI3t.
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