RUISSEAU DU MARCHAIS A COURLAY, paramètre Orthophosphates (PO4)
mg(PO4)/L
28/11/17
0.15
18/12/17
0.32
22/02/18
0.05
24/04/18
0.18
29/06/18
0.12
24/07/18
0.13
30/08/18
0.2
18/12/18
0.09
26/02/19
0.04
26/04/19
0.13
23/05/19
0.16
27/06/19
0.06
26/07/19
0.32
28/08/19
0.4
01/10/19
0.07
28/11/19
0.06
13/12/19
0.18