R CHERONNE À SAINT-DENIS-DES-COUDRAIS, paramètre Oxygène dissous mg(O2)/L

07/02/17
11.5
11/04/17
11.5
11/05/17
10
23/06/17
9.1
26/06/17
7.3
11/07/17
9.4
18/07/17
8.6
16/08/17
9.5
19/10/17
9.3
08/11/17
10.8
18/12/17
11.6
16/02/18
11.2
17/04/18
11.1
17/05/18
10.1
19/06/18
7.5
04/07/18
8.9
10/07/18
9.2
22/10/18
9.7
15/11/18
10.4
14/12/18
10.6