LAYON à CHAUDEFONDS-SUR-LAYON, paramètre Orthophosphates (PO4) mg(PO4)/L

27/03/13
0.107
25/04/13
0.043
25/06/13
0.437
12/07/13
0.32
29/08/13
0.251
23/09/13
0.344
28/10/13
0.44
15/11/13
0.31
16/12/13
0.3
09/04/14
0.01
25/04/14
0.01
27/05/14
0.38
12/06/14
0.5
31/07/14
0.61
08/08/14
0.63
25/09/14
0.52
30/10/14
0.49
21/11/14
0.43
19/12/14
0.34
09/01/15
0.39
17/02/15
0.27
20/03/15
0.16
29/04/15
0.21
28/05/15
0.35
10/06/15
0.41
23/07/15
0.49
27/08/15
0.63
23/09/15
0.43
21/10/15
0.42
19/11/15
0.48
04/12/15
0.38
30/10/18
0.443
21/12/18
0.345
26/02/19
0.206
24/04/19
0.09
21/06/19
1.203
21/08/19
0.452
30/10/19
0.374
21/10/22
0.991
23/11/22
0.84
20/12/22
0.658
20/02/23
0.172
20/03/23
0.234
20/04/23
0.079
25/05/23
0.419
20/06/23
0.741
24/07/23
0.728
25/08/23
0.987
19/09/23
0.83