RAU DE GESVRES à CHAPELLE-SUR-ERDRE (LA), paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5) mg(O2)/L

25/02/13
1.6
04/04/13
2.6
28/06/13
1.6
07/08/13
1.3
14/10/13
2.5
05/12/13
2.4
18/02/14
1.4
01/04/14
1.8
24/06/14
1.5
04/08/14
2.1
08/10/14
2.1
02/12/14
2.8
13/02/15
4.9
17/04/15
2.1
15/06/15
3.8
20/08/15
1.5
12/10/15
1.4
11/12/15
2.3
28/04/16
1.3
27/06/16
0.5
Limite de quantif.
25/08/16
1.6
21/10/16
1.2
20/12/16
1.4
27/02/17
1.4
27/04/17
1.8
29/06/17
1.1
30/08/17
2.7
26/10/17
1.5
19/12/17
1.2
25/01/18
1.8
28/02/18
1
23/03/18
0.9
27/04/18
1.6
29/05/18
1.1
28/06/18
1.3
31/07/18
1.7
31/08/18
2.1
21/09/18
1.4
18/10/18
1.7
30/11/18
1.2
28/02/19
1.2
26/04/19
1.3
05/07/19
1.5
30/08/19
1.4
28/10/19
1.7
30/12/19
1.6
28/02/20
1.6
28/04/20
5
30/06/20
3
Limite de quantif.
31/08/20
2.4
28/10/20
1.8
18/02/21
1.3
26/04/21
5.6
18/06/21
3.9
27/08/21
0.5
Limite de quantif.
22/10/21
1.6
22/12/21
2.3
26/01/22
2
25/02/22
1.6
15/03/22
2.5
29/04/22
2.4
19/05/22
2.5
28/06/22
1.8
26/07/22
1.9
29/08/22
1.8
15/09/22
0.7
28/10/22
2.8
25/11/22
2.9
23/01/23
0.5
Limite de quantif.
28/02/23
1.8
22/03/23
2.7
28/04/23
1.9
30/05/23
2.5
30/06/23
1.6
28/07/23
3
Limite de quantif.
30/08/23
3.9
21/09/23
4.4
30/10/23
1.8
24/11/23
2