PRISE D'EAU DE L'ERVE, paramètre Nitrates mg(NO3)/L

18/01/22
28
15/02/22
25
14/03/22
18
22/04/22
24
17/05/22
18
15/06/22
20
21/07/22
16
18/08/22
20
20/09/22
19
24/10/22
15
14/11/22
19
20/12/22
24
18/01/23
26
14/02/23
27
15/03/23
20
19/04/23
27
16/05/23
21
21/06/23
18
20/07/23
16
17/08/23
18
28/09/23
19
18/10/23
20
14/11/23
17
19/12/23
28