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

13/01/12
33.6
18/01/12
33.8
31/01/12
28.41
09/02/12
28.87
22/02/12
28.7
29/02/12
26.2
19/03/12
18.8
22/03/12
18.8
28/03/12
17.3
11/04/12
10.8
18/04/12
8.5
24/04/12
8.5
14/05/12
17.8
22/05/12
16.1
20/06/12
10.5
26/06/12
9.2
04/07/12
7.2
23/08/12
0.6
12/09/12
1.4
12/10/12
10.2
07/11/12
26.2
21/11/12
28.9
04/12/12
27.2
11/12/12
25.6
16/01/13
26.3
23/01/13
19.7
28/01/13
20.7
05/02/13
21.2
13/02/13
16.3
25/02/13
25.3
07/03/13
25.9
14/03/13
20.7
21/03/13
18
03/04/13
21.9
11/04/13
15.2
22/04/13
18.2
14/05/13
16.1
21/05/13
18.4
17/06/13
14.1
26/06/13
11.4
02/07/13
11.5
09/08/13
4.2
04/09/13
2.3
25/10/13
4.6
04/11/13
15
19/11/13
33
04/12/13
26
16/12/13
23
14/01/14
27
21/01/14
22
28/01/14
17
10/02/14
13
19/02/14
17
25/02/14
17
04/03/14
13
11/03/14
18
18/03/14
19
03/04/14
14
10/04/14
15
23/04/14
12
22/05/14
9.4
26/05/14
11
16/06/14
9.1
26/06/14
5.6
10/07/14
5.9
05/08/14
6.4
10/09/14
6.8
13/10/14
4
20/11/14
35
28/11/14
25
03/12/14
25
23/12/14
28
09/01/15
24
16/01/15
23
23/01/15
29
05/02/15
24
13/02/15
20
20/02/15
23
13/03/15
23
24/03/15
22
31/03/15
18
07/04/15
16
17/04/15
16
24/04/15
14
11/05/15
18
20/05/15
17
18/06/15
12
29/06/15
9
30/07/15
3.6
21/08/15
2.2
29/09/15
10
13/10/15
19
12/11/15
12
20/11/15
10
11/12/15
25
23/12/15
25
27/01/16
27.5
19/02/16
19.8
29/02/16
17.5
01/03/16
18.7
14/03/16
17.8
30/03/16
12.4
04/04/16
14.2
28/04/16
14.4
29/04/16
11.8
10/05/16
12.6
27/05/16
11.7
01/06/16
15
27/06/16
12.2
29/07/16
4.9
23/08/16
2.9
13/09/16
1.4
21/10/16
3.1
07/11/16
2.7
28/11/16
3.8
05/12/16
9.5
16/12/16
9.3
02/01/17
9.3
12/01/17
11.7
23/01/17
14.6
01/02/17
14.5
13/02/17
33.9
22/02/17
34.1
01/03/17
30.6
13/03/17
34.3
21/03/17
33
03/04/17
26.2
13/04/17
21.8
24/04/17
17.6
09/05/17
11.5
31/05/17
7
13/06/17
3.8
26/06/17
1.8
31/07/17
0.5
Limite de quantif.
28/08/17
1.4
14/09/17
0.5
Limite de quantif.
25/10/17
0.5
Limite de quantif.
06/11/17
0.5
Limite de quantif.
28/11/17
0.6
11/12/17
2.6
22/12/17
5.3
08/01/18
44
18/01/18
44
29/01/18
32
06/02/18
33
16/02/18
31
26/02/18
14
08/03/18
26
19/03/18
23
29/03/18
23
06/04/18
18
16/04/18
20
26/04/18
20
04/05/18
18
17/05/18
16
06/06/18
12
18/06/18
17
31/07/18
4.7
31/08/18
0.5
Limite de quantif.
21/09/18
0.5
Limite de quantif.
25/10/18
1.8
12/11/18
4.3
22/11/18
20
06/12/18
38
17/12/18
37
02/01/19
34
16/01/19
32
30/01/19
27
05/02/19
32
15/02/19
29
25/02/19
30
04/03/19
27
15/03/19
23
25/03/19
21
01/04/19
20
15/04/19
16
25/04/19
13
02/05/19
12
13/05/19
15
11/06/19
8.6
18/06/19
7.4
18/07/19
0.7
30/08/19
0.5
Limite de quantif.
11/09/19
0.5
Limite de quantif.
30/10/19
4
04/11/19
33
14/11/19
39
16/12/19
29
26/12/19
24
06/01/20
30
16/01/20
26
27/01/20
29
13/02/20
21
24/02/20
22
12/03/20
16
23/04/20
13
18/05/20
14
29/05/20
12
19/06/20
11
29/06/20
12
24/07/20
4
03/08/20
1.4
18/09/20
0.5
Limite de quantif.
01/10/20
2.8
02/11/20
24
09/11/20
30
16/11/20
26
23/11/20
26
01/12/20
25
14/12/20
30
04/01/21
31
12/01/21
31
20/01/21
29
12/02/21
18
22/02/21
19
11/03/21
20
23/03/21
16
31/03/21
15
01/04/21
14
14/04/21
12
19/04/21
10
03/05/21
8.1
19/05/21
5.7
01/06/21
4
23/06/21
9.8
01/07/21
14
02/08/21
3.4
01/09/21
1.9
01/10/21
0.7
02/11/21
2.7
12/11/21
4.1
01/12/21
5.4
10/12/21
12
03/01/22
26
20/01/22
29
27/01/22
28
01/02/22
27
11/02/22
25
21/02/22
23
01/03/22
23
08/03/22
22
16/03/22
19
01/04/22
15
11/04/22