RAU DE RICLON A ERCE-PRES-LIFFRE, paramètre Nitrates
mg(NO3)/L
09/01/19
12
06/02/19
16
06/03/19
8.7
03/04/19
8.4
09/05/19
6.6
05/06/19
6.9
03/07/19
5.1
01/08/19
3.6
04/09/19
2.6
01/10/19
2.8
06/11/19
15
04/12/19
14