SEMNON à PLECHATEL, paramètre Nitrates mg(NO3)/L

18/02/13
36.7
22/04/13
29.8
21/06/13
13.6
06/08/13
7.7
15/10/13
1
16/10/13
2.5
12/11/13
43
21/11/13
40
26/11/13
43
05/12/13
40
18/12/13
30
15/01/14
29
28/01/14
25
05/02/14
22
25/02/14
20
26/03/14
17
18/04/14
14
22/04/14
12
29/04/14
12
22/05/14
11
26/05/14
9.9
04/06/14
10
11/06/14
9.6
25/06/14
2.1
16/07/14
3
22/07/14
2.3
08/08/14
3.2
26/08/14
3.6
03/09/14
4.8
17/09/14
2.8
03/10/14
1
09/12/14
33
07/01/15
34
13/01/15
34
22/01/15
34
09/02/15
32
23/02/15
28
11/03/15
28
25/03/15
24
09/04/15
17
22/04/15
12
05/05/15
26
12/05/15
21
26/05/15
15
05/06/15
17
17/06/15
6
08/07/15
2
22/07/15
2
05/08/15
0.9
19/08/15
1
24/08/15
2
09/09/15
2
16/09/15
3
23/09/15
4
08/10/15
2.4
13/10/15
4.6
04/11/15
2.2
10/11/15
2.6
07/12/15
15
18/12/15
12
13/01/16
42
26/01/16
44
28/01/16
38
17/02/16
36
24/02/16
33
29/02/16
35
15/03/16
32
29/03/16
23
11/04/16
24
26/04/16
19
17/05/16
12
30/05/16
11
02/06/16
7.3
14/06/16
7
23/06/16
17
12/07/16
11
17/08/16
1.2
31/08/16
1
13/09/16
1
16/09/16
38
27/09/16
3
11/10/16
6
25/10/16
4.7
07/11/16
6
21/11/16
4
19/12/16
5
12/01/17
7.9
13/01/17
14
01/02/17
27
15/02/17
66.2
27/02/17
40
07/03/17
52
21/03/17
35
02/05/17
6.6
09/05/17
8.8
23/05/17
6.9
07/06/17
3.6
11/07/17
1
25/07/17
1.1
17/08/17
0.6
31/08/17
1
14/09/17
1.8
26/09/17
3.1
09/10/17
1.9
20/10/17
7.6
23/10/17
1
07/11/17
2.8
11/12/17
5.9
21/12/17
52
11/01/18
62
01/02/18
56
06/02/18
59
13/02/18
48
06/03/18
43
15/03/18
40
20/03/18
38
11/01/19
53
25/01/19
41
30/01/19
35
04/02/19
57
18/02/19
40
06/03/19
40
20/03/19
35
01/04/19
29
15/04/19
23
24/04/19
14
09/05/19
9.4
15/05/19
11
27/05/19
6.6
03/06/19
3.4
12/06/19
3.1
17/06/19
3.9
03/07/19
1.8
17/07/19
0.93
05/08/19
0.52
19/08/19
2.8
04/09/19
4.5
18/09/19
0.5
07/10/19
1.1
08/10/19
2.2
21/10/19
7.7
06/11/19
80
20/11/19
63
27/11/19
62
12/12/19
19
23/12/19
49
08/01/20
39
14/01/20
34
22/01/20
39
28/01/20
25
06/02/20
32
20/02/20
30
27/02/20
27
05/03/20
4.4
16/03/20
26
23/04/20
15
04/05/20
14
18/05/20
18
12/06/20
8.3
19/06/20
33
25/06/20
27
06/07/20
16
20/07/20
3.4
10/08/20
0.8
24/08/20
2.9
07/09/20
1.4
21/09/20
1
12/10/20
5.3
26/10/20
51
05/11/20
33
10/11/20
36
19/11/20
34
04/12/20
13
10/12/20
34
22/12/20
41
07/01/21
37
11/01/21
38
21/01/21
35.2
17/02/21
28
24/02/21
29.6
04/03/21
26
18/03/21
21.9
22/03/21
19
19/04/21
10
06/05/21
6.4
20/05/21
9.7
25/05/21
7.7
07/06/21
15
21/06/21
10.6
05/07/21
12
08/07/21
13
22/07/21
9.9
03/08/21
4.9
23/08/21
2.3
06/09/21
2.4
09/09/21
2.5
23/09/21
2.1
04/10/21
7.9
18/10/21
12.7
04/11/21
6.3
08/11/21
15
18/11/21
10
01/12/21
12
15/12/21
40.4
06/01/22
35
20/01/22
35
14/02/22
26
23/02/22
27
03/03/22
25
17/03/22
17
01/04/22
12
14/04/22
13
04/05/22
4.1
19/05/22
1.1
01/06/22
2.5
02/06/22
2
06/07/22
8.4
21/07/22
2.2
19/08/22
0.94
25/08/22
0.86
07/09/22
1.4
22/09/22
1.4
05/10/22
1.2
18/10/22
1.4
08/11/22
4.2
13/12/22
38
28/12/22
32
05/01/23
47
20/01/23
42
08/02/23
40
24/02/23
29
14/03/23
31
29/03/23
28
13/04/23
20
10/05/23
15
27/06/23
2.6
11/07/23
1.7
23/08/23
0.72
12/09/23
1.3
17/10/23
1.7
03/11/23
44
29/11/23
41
28/12/23
37