Abstract:
The water is a part of the natural medium that supports big changes under the influence of urbanization, first of all being af ected its quality. In the summer season, when the flow of the river is very low, the sources of pollution become toxic to the living organisms of the river. Dif erent chemical substances from the aquatic environment combine between each other and give a more toxic ef ect than the action of individual substances. Therefore their detection in water through chemical analysis still do not reflect fairly what causes damage to living organisms. In this context, for ecotoxicological assessment of the water of river Bâc within Chisinau municipality, it was performed a biological testing of river water - a method that does not require material expenses, is not complicated, being an operative and objective method.
