LE DREZET, paramètre Nitrates mg(NO3)/L

31/01/22
30
28/02/22
21
30/03/22
21
27/04/22
16
31/05/22
14
29/06/22
8
28/07/22
5
31/08/22
2
29/09/22
3
27/10/22
2
30/11/22
14
28/12/22
29
31/01/23
33
27/02/23
31
28/03/23
18
26/04/23
30
31/05/23
20
28/06/23
17
25/07/23
11
23/08/23
15
27/09/23
4
30/10/23
6.1
29/11/23
27
27/12/23
33