Ecological Systems and Devices Annotation << Back On the International year of fresh water Щербаков Б.Я., Чиликин А.Я., Ижевский В.С. The ways for decrease of fresh water toxicity are considered in connection with the UNO General Assembly appeal to control for fresh water cleanliness. The real struggle for cleanliness of fresh water is possible only at the continuous control for impurity of industrial sewage of each enterprise by means of automatic sampling devices.