Open AccessFeatures of the determination of drinking water toxicity
Author(s) -
Еlla Аrystarkhova
Publication year - 2016
Publication title -
agroèkologičeskij žurnal
Language(s) - English
Resource type - Journals
eISSN - 2077-4915
pISSN - 2077-4893
DOI - 10.33730/2077-4893.3.2016.248863
Subject(s) - daphnia magna , creatures , water quality , tradescantia , toxicology , toxicity , water pollution , pollution , environmental science , biology , environmental chemistry , ecology , chemistry , botany , paleontology , organic chemistry , natural (archaeology)
The article is devoted to the problem of the determination of drinking water toxicity in the system of water supply of Zhytomyr сity. An increase of reliability of control 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 components for determination of water ecotoxicological potential. The results of such a biological testing enable more fully to estimate influence of contaminents on living creatures. It was suggested during the leadthrough of quality testing of drinking water to use Daphnia magna Straus and Tradescantia fluminensis Vellozo in the presented researches. On the basis of test-objects reactions the index of drinking water toxicity was calculated. The harmful influence of water secondary pollution on the living organisms (index of toxicity 50%, group D1) is noted. It was found out the specificity of sensitiveness of tradescantia (on 8th day) and daphnia (on 15th day) to chronic effect of drinking water components.