LE BETZ A HAUTERIVE, paramètre Nitrates
mg(NO3)/L
20/03/19
21
21/05/19
12
23/07/19
12
22/08/19
9.9
19/09/19
10
20/11/19
31
20/07/22
11
23/08/22
11
20/09/22
12
16/11/22
8.4
21/03/23
18
09/05/23
12