ORNE CHAMPENOISE à ETIVAL-LES-LE-MANS, paramètre Phosphore total
mg/L
14/02/17
0.03
13/04/17
0.04
26/06/17
0.14
21/08/17
0.09
24/10/17
0.06
18/12/17
0.04
14/02/19
0.05
10/04/19
0.04
19/06/19
0.07
12/08/19
0.06
22/10/19
0.09
10/12/19
0.12