RHONNE à MONCE-EN-BELIN, paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5) mg(O2)/L

15/01/14
2.7
26/02/14
2.5
21/03/14
3.5
02/04/14
2.2
19/05/14
2.1
05/06/14
3.4
31/07/14
1.8
28/08/14
1.6
04/09/14
2.4
27/10/14
1.7
19/11/14
2.2
03/12/14
2.1
13/01/15
3.5
11/02/15
2.7
20/03/15
2.3
10/04/15
3.2
27/05/15
2
20/07/15
2.7
21/08/15
1.9
17/09/15
2
23/10/15
3.4
20/11/15
6
23/12/15
1