BOIVRE à SAINT-PERE-EN-RETZ, paramètre Orthophosphates (PO4) mg(PO4)/L

16/02/10
0.32
15/04/10
0.5
11/06/10
0.86
11/08/10
0.31
22/10/10
0.2
07/12/10
0.35
18/02/11
0.29
19/04/11
1.33
16/06/11
0.4
29/08/11
0.69
27/10/11
0.54
12/12/11
0.41
08/02/12
0.12
19/04/12
0.43
04/06/12
1.23
30/08/12
0.23
30/10/12
0.25
14/12/12
0.15
11/02/13
0.34
25/04/13
0.44
24/06/13
0.65
20/08/13
0.1
18/10/13
0.33
04/12/13
0.23
17/02/14
0.3
29/04/14
0.23
26/06/14
0.87
10/09/14
0.93
23/10/14
0.63
23/12/14
0.23
19/02/15
0.2
02/04/15
0.74
16/06/15
0.45
13/08/15
0.03
29/10/15
0.38
14/12/15
0.35
23/02/16
0.19
07/04/16
0.47
21/06/16
0.77
18/08/16
0.09
17/10/16
0.02
15/12/16
0.12
28/02/17
0.19
10/04/17
0.3
09/06/17
0.14
07/08/17
0.02
09/10/17
0.02
06/12/17
0.05
20/02/18
0.58
19/04/18
0.475
14/06/18
0.848
14/08/18
0.28
26/10/18
0.04
11/12/18
0.43
15/10/19
0.1
17/12/19
0.62
12/02/20
0.77
06/04/20
0.18
02/06/20
0.051
12/08/20
0.038
21/10/20
0.052
08/12/20
0.21
03/02/21
0.27
21/04/21
0.79
30/06/21
0.17
19/08/21
0.089