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Int J Hyg Environ Health. 2000 Mar;203(1):87-9.

Impact of silver and copper on the survival of amoebae and ciliated protozoa in vitro.

Author information

1
Abteilung für Hygiene, Sozial- und Umweltmedizin, Ruhr-Universität Bochum, Germany. Rohr@hygiene.ruhr-uni-bochum.de

Abstract

The efficacy of 1:10 silver/copper combinations for inactivation of Hartmannella vermiformis amoebas and the ciliated protozoan Tetrahymena pyriformis in vitro was studied. Tetrahymena and Hartmannella/isolate 19 were inactivated for 2 log steps by 100 + 1000 micrograms/l Ag + Cu. Hartmannella/isolate 21 was more resistant. 500 + 5000 micrograms/l produced only a 0.6 log reduction. The investigations clearly showed that levels within the limit of the German drinking water regulation (10 + 100 micrograms/l Ag + Cu) could not inactivate these protozoas in vitro.

PMID:
10956595
DOI:
10.1078/S1438-4639(04)70013-9
[Indexed for MEDLINE]

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