RAU VRIGNON À SAINT-AUBIN-DES-ORMEAUX, paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5)
mg(O2)/L
13/02/17
2.4
25/04/17
1.5
15/12/17
3.1
23/02/18
2.2
24/04/18
1.8
26/06/18
1.7
18/12/18
1.4
18/01/21
1.7
09/02/21
0.9
08/03/21
1.8
15/04/21
2.2
10/05/21
3.7
07/06/21
1.3
12/07/21
0.5
08/11/21
1.7
06/12/21
4.4