LAYON à MARTIGNE-BRIAND, paramètre Nitrates mg(NO3)/L

15/01/13
23
11/03/13
20
09/04/13
23
21/05/13
29
11/06/13
20
09/07/13
20
13/08/13
16
09/09/13
17
15/10/13
31
12/11/13
28
09/12/13
35
14/01/14
20
11/02/14
17
11/03/14
29
15/04/14
29
14/05/14
30
10/06/14
26
15/07/14
16
12/08/14
17
09/09/14
34
14/10/14
18
12/11/14
17
09/12/14
31
15/01/15
23
10/02/15
33
10/03/15
26
15/04/15
22
11/05/15
22
08/06/15
21
21/07/15
10
11/08/15
15
14/09/15
33
13/10/15
20
17/11/15
12
14/12/15
21
12/01/16
21
09/02/16
15
14/03/16
13
12/04/16
26
11/05/16
26
13/06/16
25
18/07/16
31
09/08/16
19
12/09/16
24
11/10/16
25
15/11/16
10
12/12/16
23
10/01/17
30
14/02/17
22
13/03/17
38
11/04/17
18
09/05/17
11
12/06/17
7
11/07/17
6
16/08/17
6
11/09/17
6
10/10/17
9
14/11/17
9
11/12/17
16
15/01/18
58
12/02/18
37
12/03/18
26
10/04/18
17
22/05/18
23
11/06/18
13
09/07/18
18
07/08/18
8
10/09/18
10
08/10/18
7
12/11/18
21
10/12/18
40
12/02/19
23
12/03/19
27
09/04/19
20
11/06/19
13
09/07/19
2.7
12/08/19
7.8
10/09/19
21
15/10/19
11
12/11/19
20
10/12/19
52
25/02/20
29
24/06/20
26
17/08/20
10
26/10/20
19
13/11/20
13
18/12/20
43
26/02/21
32
29/04/21
21
18/06/21
24
30/08/21
22
18/10/21
31
21/12/21
18
10/01/22
37
14/02/22
31
15/03/22
19
11/04/22
11
09/05/22
14
13/06/22
9.8
11/07/22
1.6
08/08/22
0.5
Limite de quantif.
07/09/22
4.8
10/10/22
22
14/11/22
13
12/12/22
25
10/01/23
60
13/02/23
37
13/03/23
27
11/04/23
19
09/05/23
10
12/06/23
5.9
10/07/23
8.2
07/08/23
8.5
11/09/23
3.1
09/10/23
16
13/11/23
26