RAU PUIT D'ENFER A EXIREUIL, paramètre Nitrates
mg(NO3)/L
22/05/12
11.3
12/06/12
20.8
17/10/12
33.5
07/11/12
32.3
26/02/14
10
16/04/14
15
23/06/14
18
25/08/14
14
22/10/14
9.5
17/12/14
13
14/12/22
25
12/01/23
28
10/02/23
23
10/03/23
15
28/04/23
12
23/05/23
9.6