БІОТЕСТУВАННЯ ТОКСИЧНОСТІ ПИТНОЇ ВОДИ
The article analyzes the problem of the determina- tion of drinking water toxicity in the system of water supply in Zhytomyr. An increase of reliability of cont- rol of drinking water quality is especially important in the conditions of tense ecological situation. That's why it is expediently to apply so-called sets of test- organisms in which the representatives of vegetable and animal forms have to become as obligatory com- ponents for determination of water ecotoxicological potential. The results of such a biological testing ena- ble to estimate influence of contaminents on living creatures more fully. It was suggested during the car- rying out the testing of drinking water quality to use Ceriodaphnia affinis Lilljeborg and Allium сера L. in the presented researches. On the basis of test-objects reactions the index of drinking water toxicity was cal- culated. The harmful influence of water secondary pol- lution on the living organisms is noted. We found out the specificity of sensitiveness of A. сера (on 8 day) and C. affinis (on 8 and 15 day) to chronic effect of drinking water component