ERRE à SAINT-HILAIRE-SUR-ERRE, paramètre Nitrates
mg(NO3)/L
18/02/20
26
08/06/22
28
05/08/22
30
04/10/22
28
02/12/22
27
06/01/23
28
03/02/23
30
27/03/23
23
05/04/23
25
24/05/23
28
02/06/23
28
04/07/23
28
07/08/23
29
07/09/23
28