[Hygienic characteristic of some new materials used for new and modernized water supply systems].

Activated carbon FAS/Pt and membrane GOMPOD do not deteriorate water quality under its purification. Mineralisator MP-UK in general does not deteriorate water quality. All the studied materials were recommended for treatment and conditioning of water in space apparatuses.

[Toxicologic evaluation of purified municipal and industrial waste water].

Analysis of waters sewage in Kiev and of waste water of a textile and se wing enterprise in Chernigov has shown that treatment by biological method and with activated carbon was fairely efficient in toxicity reduction.

[Hygienic study of an activated fibrous charcoal material as a sorbing filtering element for drinking water afterpurification].

The results of complex toxicological and hygienic study showed that the quality of pipe water filtered through the activated carbonic fibrous material (ACFM) "Dnepr-F" forming a part of absorptive filtering element improved markedly. The content of organic substances decreased drastically as well as that of nitrates and iron. Microbiological indices did not suffer appreciable changes and were within permissible limits.

[The hygienic evaluation of an aerosol-gas mixture as a preservative of potable water].

Complex hygienic assessment of the aerosol-gas method for the drinking water conservation demonstrated no significant effects on white rats in toxicological and genetical experiments. The method was recommended for long-term conservation of the drinking water in steel tanks.