Sens communChange in the status of an aquatic environment or a river system causing degradation. Alterations are defined by their nature (physical, ionic, organic, toxic, biological, etc.) and their effect (eutrophication, asphyxia, poisoning, change in populations, etc). In most cases these alterations are due to human activities, but they can also be natural.
According to the Ministry of Sustainable Development
Soumis au comité de relecture.