RAU DE LA CHATOUILLETTE À SERENT, paramètre Nitrates mg(NO3)/L

15/01/13
39.2
11/02/13
41.7
21/03/13
38.3
09/04/13
27.3
11/06/13
40.5
02/07/13
41.2
08/08/13
37.5
12/11/13
34
10/12/13
44
10/01/14
39
13/03/14
40
15/04/14
40
16/06/14
44
03/07/14
40
05/09/14
35
09/10/14
31
07/11/14
31
12/12/14
35
20/10/22
15
17/11/22
30
20/12/22
19
13/01/23
33
06/02/23
37
21/03/23
30
28/04/23
30
23/05/23
34
29/06/23
31
26/07/23
21
24/08/23
18