ETIER DU DAIN À SAINT-GERVAIS, paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5) mg(O2)/L

22/01/15
4.2
21/04/15
4.2
20/05/15
7.9
17/06/15
6
18/08/15
5.8
14/10/15
7
16/02/16
3.4
26/04/16
4
24/05/16
6
21/06/16
4.1
17/08/16
3.2
18/10/16
4
14/02/17
5.2
19/04/17
6
16/05/17
5.6
13/06/17
2.8
16/08/17
2
09/10/17
3.6
22/02/18
4.9
17/04/18
5.5
17/05/18
5.3
21/06/18
9
13/08/18
4.5
11/10/18
2.9