ARZ à ELVEN, paramètre Nitrates mg(NO3)/L

27/01/16
45
29/03/16
20
26/04/16
26
25/05/16
20
28/06/16
22
26/07/16
22
23/08/16
16
27/09/16
14
25/10/16
17
22/11/16
16
20/12/16
18
30/01/17
21
28/02/17
19
28/03/17
25
25/04/17
25
30/05/17
17
27/06/17
12
24/07/17
13
29/08/17
7.1
28/09/17
9.8
30/10/17
11
28/11/17
15
19/12/17
6.8
30/01/18
28
27/02/18
30
28/03/18
23
24/04/18
26
30/05/18
17
27/06/18
26
30/07/18
19
27/08/18
18
26/09/18
13
30/10/18
17
29/11/18
17
17/12/18
21