PETIT FOUGERAIS A BOURNEAU, paramètre Nitrates
mg(NO3)/L
16/01/23
23
07/02/23
39
13/03/23
28
17/04/23
34
15/05/23
33
12/06/23
35
12/07/23
30
21/08/23
20
11/09/23
9.1