CHERE A ST AUBIN DES CHATEAUX, paramètre Nitrates mg(NO3)/L

16/10/19
4.2
18/12/19
27.9
20/02/20
27
21/04/20
17
24/06/20
17
20/08/20
5
14/10/20
2.3
16/12/20
38
17/02/21
32
30/04/21
14
17/06/21
6.1
18/08/21
6.3
29/10/21
7.4
17/12/21
28
21/02/22
23
28/04/22
13
21/06/22
27
11/08/22
0.64
20/10/22
3.2
05/12/22
24
01/02/23
34
18/04/23
20
19/06/23
6.5