CANAL DE HAUTE PERCHE à PORNIC, paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5) mg(O2)/L

28/02/17
5.2
10/04/17
2.7
09/06/17
4.3
07/08/17
4.4
09/10/17
2.5
06/12/17
1.7
20/02/18
1.6
19/04/18
2.8
14/06/18
3.7
14/08/18
2.7
26/10/18
8
11/12/18
1.5
13/02/19
2
15/04/19
2
06/06/19
4.5
09/08/19
6.4
15/10/19
3.1
17/12/19
1.2
12/02/20
1.3
06/04/20
3.9
02/06/20
4.8
12/08/20
4.1
21/10/20
4.4
08/12/20
1.7
03/02/21
1.4
21/04/21
7
30/06/21
4
19/08/21
6
28/10/21
4.1
10/12/21
2.5
16/02/22
1.7
14/04/22
3.4
15/06/22
3.7
04/08/22
8
12/10/22
12
20/12/22
2.5
03/02/23
2.4
05/04/23
1.9
08/06/23
4.2