RAU VEZANNE A MALICORNE-SUR-SARTHE, paramètre Nitrates mg(NO3)/L

04/02/13
12.5
10/04/13
7.3
24/06/13
8.5
27/08/13
11.6
29/10/13
10
10/12/13
10
26/02/14
9
02/04/14
6.7
05/06/14
6.5
28/08/14
7.7
29/10/14
9.4
03/12/14
7.5
21/02/18
19
27/04/18
9.6
22/06/18
7.7
24/08/18
1.8
26/10/18
5.3
19/12/18
26
14/02/19
17
16/04/19
6.4
21/06/19
5.5
12/08/19
3.3
22/10/19
9.3
11/12/19
19