Sewage disposal, industry, agriculture and livestock are sometimes sources of freshwater pollution. Focus in this dossier on some cases of river contamination, such as the Rhône near Valence, the Tarn, the Authie in Doullens or a river in Lièpvre.
Near Valence in the Drôme, the pollution of the Rhône caused the death of many fish. The interview of a fisherman alternates with images of the surface of the river with a school of dead fish and their recovery.
At Doullens in the Somme, the Authie River suffers from industrial pollution. Fishermen provide advice on how to encourage the hatching of trout larvae despite pollution.
Three residents of Lièpvre, a small Alsatian town covered by a stream, tell about the pollution of the river’s water that even prevents them from opening windows in the summer because of the foul smell. Images of the river and its polluted water alternate with interviews.
In the Central region between Loiret and Eure and Loir, the nitrate concentration in water exceeds the maximum level laid down by the Law of 30 August 1980. The interview with an expert from the Basin Agency who proposes a better distribution of water alternates with illustration images.
René BRONET from the Department of Water and Forestry explains the problem of water pollution by taking the example of Tarn , a very polluted river. His interview alternates with images of the river.
The pollution of the freshwater of rivers is often of industrial origin. Interviews with a sand pit leader and children fishing alternate with images of polluted waterways.