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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Imprimer: 0018-8166
ISSN En ligne: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v39.i6.80
8 pages

A Study of Sensitivity of Ceriodaphnia affinis Lilljeborg to Tap Water of the City of Kiev

M. Hoffmann
Center of Ecological Monitoring of Ukraine, Kyiv; Main State Ecological Inspectorate in the Ministry for Environmental Protection of Ukraine, Kyiv, Ukraine
V. I. Rakov
Center of Ecological Monitoring of Ukraine, Kyiv; Main State Ecological Inspectorate in the Ministry for Environmental Protection of Ukraine, Kyiv, Ukraine

RÉSUMÉ

The reliability of toxicity tests with the use of Ceriodaphnia affinis Lilljeborg as test objects can be significantly reduced or eliminated because of the use of tap water for blanks and dilution, as it is recommended by the relevant Ukrainian regulatory document. In order to get at least a rough idea about the causes of toxicity, tap water was treated physically and chemically to exclude various groups of toxicants. The results show that low-molecular organic compounds rather than inorganic ones cause the difficulties at determination of harmfulness of drinking tap water. Further gas- chromatographic analyses should be carried out to specify those compounds, but it is already obvious that the Ukrainian regulatory document should be changed in this point.


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