OUST à SAINT-MARTIN-DES-PRES, paramètre Nitrates
mg(NO3)/L
14/01/16
35
25/02/16
33
17/03/16
36
21/04/16
33
19/07/16
30
19/10/16
21
13/12/16
16
24/01/17
25
16/02/17
33
30/03/17
32
26/04/17
26
18/05/17
14
10/08/17
20
28/09/17
14
16/11/17
16
23/01/18
35
27/03/18
27
19/04/18
35