ORNE CHAMPENOISE à ETIVAL-LES-LE-MANS, paramètre AMPA
µg/L
13/04/17
0.14
15/05/17
0.26
26/06/17
0.53
17/07/17
0.41
24/10/17
0.32
13/11/17
0.34
18/12/17
0.23
10/04/19
0.13
16/05/19
0.1
19/06/19
0.27
16/07/19
0.43
22/10/19
0.31
13/11/19
0.21
10/12/19
0.12