L'OUIN A CHOLET, paramètre Nitrates
mg(NO3)/L
18/04/13
22.3
27/08/13
0.5
26/09/13
6.3
04/06/15
16
31/07/15
4.7
20/08/15
7.1
24/09/15
22
03/10/16
11.7
27/10/16
15.9
22/06/17
0.6
28/09/17
1.8
24/10/17
0.5
Limite de quantif.
08/11/17
5.3
30/11/17
4.4