RAU DE TANCHET A CHATEAU-D'OLONNE, paramètre Nitrates mg(NO3)/L

20/02/18
12
28/03/18
4.2
19/04/18
11
31/05/18
9.8
20/06/18
8.2
21/06/18
8.4
24/08/18
23
24/09/18
6
22/10/18
3
24/10/18
2.9
14/12/18
17
17/12/18
16
18/02/19
16
20/05/19
8.1
24/06/19
11
23/09/19
4.5
21/10/19
7.1
16/12/19
8.4
10/02/20
9.9
14/05/20
11
16/06/20
6.2
15/09/20
6.7
13/10/20
3.1
08/12/20
11