River quality data

Quality Data Archives The water quality of the main rivers of the Adour-Garonne basin is regularly measured within the framework of networks established since 1971. This measuring device is based on: • Monitoring checks on chemical and biological status to ensure that rivers are in good condition • Operational controls to identify pollution preventing the achievement of good status and to monitor the evolution of watercourses following the actions taken • Monitoring controls to ensure specific monitoring of protected areas such as abstractions for drinking water or bathing A network of reference stations makes it possible to define the reference conditions for the different types of water bodies that can be considered to be in good ecological status. Purpose: Disseminating data, improving knowledge of the environment to steer the Agency's actions.