MADELEINE A BLAIN, paramètre Nitrates
mg(NO3)/L
19/02/15
20.8
19/03/15
17.4
22/04/15
8
18/05/15
9.6
16/06/15
6.5
17/07/15
1.6
17/08/15
2.5
18/09/15
9.1
16/10/15
2.5
20/11/15
6.4
18/12/15
41.6