RAU DE LA QUEILLE A CHATELAIS, paramètre Demande Biochimique en oxygène en 5 jours (D.B.O.5)
mg(O2)/L
12/02/14
1.6
07/04/14
2.1
24/06/14
2.1
20/08/14
1.7
17/10/14
1.7
23/12/14
1.9
01/03/21
0.5
06/04/21
2.3
03/05/21
1.9
07/06/21
1.3
05/07/21
4.6
02/08/21
1.1
20/09/21
1.6
04/10/21
1.6
02/11/21
1.9
06/12/21
1.3