SEVRE NANTAISE à REZE, paramètre Orthophosphates (PO4) mg(PO4)/L

12/02/09
0.23
27/04/09
0.24
23/06/09
0.34
29/07/09
0.46
19/10/09
0.3
26/11/09
0.33
23/02/10
0.18
20/04/10
0.14
14/06/10
0.5
31/08/10
0.24
25/10/10
0.23
30/11/10
0.46
23/02/11
0.38
04/04/11
0.13
21/06/11
0.4
30/08/11
0.54
12/10/11
0.34
29/11/11
0.36
27/02/12
0.15
02/05/12
0.4
28/06/12
0.35
10/09/12
0.46
12/10/12
0.4
17/12/12
0.57
28/02/13
0.25
08/04/13
0.13
19/06/13
0.31
13/08/13
0.41
29/10/13
0.41
18/12/13
0.29
27/02/14
0.31
08/04/14
0.17
19/06/14
0.06
21/07/14
0.37
20/10/14
0.31
17/12/14
0.38
26/02/15
0.29
08/04/15
0.2
10/06/15
0.05
19/08/15
0.29
22/10/15
0.48
15/12/15
0.43
20/04/17
0.23
30/05/17
0.15
22/08/17
0.21
06/10/17
0.19
05/12/17
0.15
28/02/18
0.25
13/04/18
0.25
04/06/18
0.31
22/08/18
0.27
23/10/18
0.24
03/12/18
0.14
12/02/19
0.38
16/04/19
0.07
12/06/19
0.39
08/08/19
0.29
15/10/19
0.23
17/12/19
0.34
13/02/20
0.48
17/04/20
0.023
03/06/20
0.33