RAU VRIGNON À SAINT-AUBIN-DES-ORMEAUX, paramètre Nitrates
mg(NO3)/L
13/02/17
39.3
25/04/17
18.9
15/12/17
50
23/02/18
26
24/04/18
12
26/06/18
9.1
18/12/18
39
18/01/21
30
09/02/21
17
08/03/21
16
15/04/21
7.8
10/05/21
5.1
07/06/21
4.7
12/07/21
4.9
08/11/21
3.2
06/12/21
6.8