RUISSEAU D'YZERNAY A MAULEVRIER, paramètre Orthophosphates (PO4) mg(PO4)/L

16/01/15
0.69
19/02/15
0.64
17/03/15
0.17
15/04/15
0.54
02/06/15
1.59
13/10/15
1.25
12/11/15
1.68
08/12/15
0.61
02/03/16
0.54
30/03/16
0.61
19/04/16
1.4
23/06/16
2.11
10/10/16
1.2
15/11/16
0.53
13/12/16
0.36
08/03/17
0.2
11/04/17
0.22
20/06/17
1.36
17/10/17
1.52
14/11/17
1.97
05/12/17
1.81
23/01/19
0.2
13/02/19
0.24
08/04/19
0.09
13/05/19
0.46
19/06/19
0.95
15/07/19
0.84
12/08/19
0.81
16/09/19
0.42
07/10/19
0.49
04/11/19
0.38
02/12/19
0.23