SEVRE NANTAISE à CERIZAY, paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5) mg(O2)/L

23/04/12
6.2
29/05/12
4.6
19/06/12
3.1
16/07/12
4.2
24/08/12
4.1
14/09/12
6.1
11/10/12
4.9
23/11/12
1.8
21/02/13
2
26/04/13
2.4
25/06/13
2.4
26/08/13
2.3
23/10/13
2.7
17/12/13
3.1
24/02/14
2.8
14/04/14
4.5
24/06/14
3.3
18/08/14
2.5
16/10/14
2.4
22/12/14
2.7
24/02/15
3.8
27/04/15
4.4
22/06/15
4.3
20/08/15
6.1
26/10/15
3
22/12/15
2.3
18/02/16
2
26/04/16
2.1
20/06/16
2.8
16/08/16
2.9
19/10/16
0.5
Limite de quantif.
14/12/16
1.8
09/02/17
1.8
24/04/17
3.9
26/06/17
2.7
23/08/17
3.3
23/10/17
2.9
14/12/17
3.2
22/02/18
1.2
23/04/18
2.3
25/06/18
2.7
03/08/18
3.3
05/10/18
2
21/02/19
1.9
29/04/19
2.9
30/08/19
5.3
25/10/19
2.7
30/12/19
3.3
26/02/20
2.1
28/04/20
2.4
18/06/20
3.8
24/08/20
2.9
27/10/20
3
21/12/20
2.3
23/02/21
0.9
21/06/21
3.2
17/08/21
1.4
20/10/21
4.8
22/12/21
2.6
23/02/22
1.5
13/04/22
2.4
17/06/22
1.3
17/08/22
2.2
24/10/22
1.4
16/12/22
2.4
10/02/23
1.7
27/04/23
1.5
27/06/23
2
28/08/23
2.3