OUST à GUELTAS, paramètre Nitrates mg(NO3)/L

21/10/13
11
20/02/14
42
20/03/14
44
28/04/14
30
21/05/14
32
20/06/14
27
22/07/14
28
29/08/14
18
26/09/14
14
14/01/15
31
05/02/15
42
05/03/15
41
31/03/15
34
08/06/15
33
17/07/15
27
06/10/15
16
09/11/15
9
14/01/16
41
25/02/16
36
17/03/16
41
21/04/16
39
11/08/16
14
19/10/16
9
17/11/16
6
13/12/16
14
24/01/17
23
16/02/17
40
26/04/17
34
18/05/17
20
10/08/17
9
28/09/17
6
19/12/17
33
23/01/18
39
27/03/18
37
19/04/18
41
21/06/18
25
20/09/18
9
20/11/18
8
20/12/18
31
24/01/19
34
25/02/19
44
26/03/19
38
25/04/19
31
23/05/19
30
20/06/19
22
18/07/19
29
20/09/19
16
25/01/22
40
22/02/22
34
24/03/22
35
19/04/22
32
17/05/22
27
21/06/22
17
21/07/22
9
16/08/22
4
15/09/22
6
18/10/22
6
16/11/22
8
13/12/22
27