CANAL DE NANTES A BREST à NORT-SUR-ERDRE, paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5) mg(O2)/L

19/01/10
2
Limite de quantif.
23/02/10
3.5
17/03/10
4.9
23/04/10
4.8
25/05/10
2.7
17/06/10
4.7
15/07/10
3.4
26/08/10
2.7
16/09/10
5.6
14/10/10
2.4
17/11/10
2.8
17/12/10
2
Limite de quantif.
19/01/11
2
Limite de quantif.
16/02/11
3
29/03/11
4.6
28/04/11
3.9
27/05/11
4.8
28/06/11
2.8
08/07/11
3.4
26/08/11
4.3
15/09/11
3.2
10/10/11
5.9
15/11/11
2.2
21/12/11
2.4
16/01/12
2.9
07/02/12
3.8
08/03/12
5.8
18/04/12
3.9
14/05/12
4.5
08/06/12
5.5
11/07/12
5.3
22/08/12
2.1
07/09/12
3.5
10/10/12
3.5
21/11/12
2.9
07/12/12
3.4
18/02/13
3.1
23/04/13
6.7
20/06/13
6.5
19/08/13
3.2
16/10/13
1.8
16/12/13
3.4
12/02/14
2
22/04/14
6
17/06/14
6.6
21/08/14
3.5
17/10/14
6.1
15/12/14
5.3
13/02/15
2.9
22/04/15
6
15/06/15
6
24/08/15
3.4
12/10/15
3
10/12/15
3
19/02/16
2.1
20/04/16
1.1
15/06/16
0.8
25/08/16
3.7
13/10/16
1.5
20/12/16
2.3
20/02/17
4.2
19/04/17
3.3
21/06/17
2.5
29/08/17
1.9
18/10/17
1.7
11/12/17
2.6
17/01/18
5.5
15/02/18
2.4
22/03/18
4.6
17/04/18
6
28/05/18
3.6
19/06/18
7.2
30/07/18
1.6
21/08/18
3.6
05/09/18
1
19/10/18
2.5
30/11/18
3.1
11/12/18
1.6
06/02/19
2.1
17/04/19
1.9
05/07/19
3.9
22/08/19
3.7
21/10/19
2.6
20/12/19
4.3
26/02/20
1.8
16/04/20
3.5
25/06/20
2.7
25/08/20
4
23/10/20
1.5
18/12/20
1.4
24/02/21
1
23/04/21
5.7
24/06/21
3.1
16/08/21
2.7
26/10/21
4.1
22/12/21
4.2
23/02/22
5.1
21/04/22
4.7
28/06/22
3.2
23/08/22
3.6