LE TREZON A MAZIERES-EN-MAUGES, paramètre Orthophosphates (PO4) mg(PO4)/L

16/01/15
0.25
19/02/15
0.1
17/03/15
0.1
15/04/15
0.1
02/06/15
0.15
13/10/15
0.17
13/11/15
0.25
08/12/15
0.13
03/03/16
0.11
30/03/16
0.1
18/04/16
0.1
22/06/16
0.22
11/10/16
0.19
15/11/16
0.36
13/12/16
0.17
08/03/17
0.16
10/04/17
0.11
20/06/17
0.43
14/11/17
0.14
05/12/17
0.1
06/03/19
0.12
09/04/19
0.03
18/06/19
0.45
08/10/19
0.53
04/11/19
0.33
03/12/19
0.25