RAU DE LA QUEILLE A CHATELAIS, paramètre Orthophosphates (PO4)
mg(PO4)/L
12/02/14
0.13
07/04/14
0.03
24/06/14
0.07
20/08/14
0.08
17/10/14
0.01
23/12/14
0.02
01/03/21
0.07
06/04/21
0.025
03/05/21
0.044
07/06/21
0.07
05/07/21
0.26
02/08/21
0.093
20/09/21
0.068
04/10/21
0.1
02/11/21
0.044
06/12/21
0.046