SEVRE NANTAISE à MONTRAVERS, paramètre Nitrates mg(NO3)/L

12/03/13
15
13/05/13
19
16/07/13
16
26/08/13
14
17/09/13
11
10/12/13
23
10/03/14
19
13/05/14
16
07/07/14
12
12/08/14
11
22/09/14
15
08/12/14
19
09/03/15
21
12/05/15
16
06/07/15
12
11/08/15
10
14/09/15
7
07/12/15
18
08/03/16
17
11/05/16
17
05/07/16
16
09/08/16
13
12/09/16
10
05/12/16
19
23/03/17
16
18/05/17
15
19/07/17
5
29/08/17
4
12/09/17
5
18/12/17
16
13/03/18
17
30/05/18
15
16/07/18
11
08/08/18
11.2
11/09/18
11.8
19/12/18
22.5
12/03/19
14.9
28/05/19
15.2
15/07/19
8.7
05/08/19
7.6
09/09/19
8.8
04/03/20
10
25/05/20
17.4
08/07/20
14.5
12/08/20
7.9
18/09/20
10.5
14/12/20
20.8
03/03/21
19.9
12/05/21
15.9
08/07/21
12.8
11/08/21
11.1
15/09/21
9.3
20/12/21
19.1
02/03/22
19.5
11/05/22
16.4
13/07/22
13.9
10/08/22
7.2
14/09/22
5.7
23/12/22
19.9
01/03/23
21.6
10/05/23
11
12/07/23
7.4
09/08/23
8.3
18/12/23
20.5