R DE SAINT-ELOI OU RAU ETIER DE BILIERS À NOYAL-MUZILLAC, paramètre Nitrates mg(NO3)/L

09/04/14
30
10/06/14
29
13/08/14
21
09/10/14
22
08/12/14
38
05/10/20
18
04/11/20
21
04/12/20
17
16/02/21
25
08/04/21
33
17/06/21
28
19/08/21
28
21/10/21
15
14/12/21
23
04/01/22
16.3
23/03/22
13
08/04/22
17.8
23/05/22
25.5
28/09/22
16.9
24/10/22
16.1
16/11/22
13.3
28/12/22
28.1
21/02/23
32
26/04/23
24
15/06/23
28
18/08/23
23
06/10/23
26