Status Data - Rivers

Ecological and chemical status at stations, 1971 to 2023

Purpose: This dataset presents the results of the calculation of stream status indicators at the measurement station level.

Since January 2016, the calculations are carried out over three rolling years in accordance with the Order in force and are updated regularly over the entire measurement period available to the station.

Since 2018, new indices are taken into account (Multimetric Invertebrate Index -I2M2- in particular).