RAU DE LA QUEILLE A CHATELAIS, paramètre Nitrates
mg(NO3)/L
12/02/14
23
07/04/14
21
24/06/14
16
20/08/14
16
17/10/14
5.6
23/12/14
9.3
01/03/21
31
06/04/21
19
03/05/21
17
07/06/21
11
05/07/21
16
02/08/21
6.2
20/09/21
5.4
04/10/21
81
02/11/21
4.1
06/12/21
26