LE MONTY A SAINT-MALO-DU-BOIS, paramètre Nitrates
mg(NO3)/L
22/07/16
36
24/10/16
22.9
24/11/16
27.1
20/12/16
26.9
25/01/21
56
24/02/21
57
25/03/21
54
27/04/21
43
19/05/21
33
23/06/21
23
29/07/21
26
25/08/21
20
20/10/21
15
24/11/21
21
27/12/21
34