LE CANAL DU MARAIS (GREE) A ANCENIS, paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5) mg(O2)/L

17/02/10
3.7
12/04/10
3.1
08/06/10
5.4
28/07/10
4.8
20/10/10
1.9
07/12/10
3.8
14/02/11
4.2
06/04/11
1.7
08/06/11
1.7
23/08/11
5.6
17/10/11
1.7
06/12/11
3.4
20/02/12
4.2
19/04/12
5.6
20/06/12
5.3
31/08/12
5.3
30/10/12
2
19/12/12
4.4
21/02/13
1
15/04/13
1.9
13/06/13
2
19/08/13
13
22/10/13
4.6
11/12/13
3.9
27/02/14
1.1
09/04/14
1.9
30/06/14
9
31/07/14
8
28/10/14
4.6
09/12/14
1.4
11/02/15
1.6
29/04/15
2
22/06/15
3.4
20/08/15
2.6
29/10/15
4.7
08/12/15
1.4
03/03/16
2.3
25/04/16
3.5
02/06/16
1.1
29/07/16
6
24/08/16
3.8
30/09/16
1.2
18/10/16
1.7
21/11/16
7
20/12/16
7
14/02/17
11
27/04/17
3.7
12/06/17
8
25/08/17
7
25/10/17
7
12/12/17
2.2
27/02/18
2.9
23/04/18
1.7
14/06/18
3.6
05/12/18
1.6
27/02/19
4.4
29/04/19
2.3
28/10/19
5.6
06/02/20
1.4
09/04/20
3.8
26/06/20
7
12/10/20
3.5
18/12/20
1.5
18/02/21
1.5
26/04/21
2
18/06/21
3
Limite de quantif.
27/08/21
4.6
22/10/21
5.4
22/12/21
3
Limite de quantif.
07/02/22
3.4
15/04/22
3.7
22/06/22
6