* à LANGAST, paramètre Nitrates mg(NO3)/L

14/01/16
38
25/02/16
36
17/03/16
43
21/04/16
43
19/05/16
42
19/07/16
45
11/08/16
44
16/09/16
35
19/10/16
34
17/11/16
27
13/12/16
27
24/01/17
36
16/02/17
39
30/03/17
39
26/04/17
41
18/05/17
24
28/06/17
42
10/08/17
21
28/09/17
32
16/11/17
29
19/12/17
34
23/01/18
37
27/03/18
36
19/04/18
42
24/05/18
43
21/06/18
42
24/07/18
44
20/09/18
39
18/10/18
31
20/11/18
32
20/12/18
31
24/01/19
32
25/02/19
43
26/03/19
42
25/04/19
31
23/05/19
41
20/06/19
26
18/07/19
43
20/09/19
39
25/01/22
40
22/02/22
36
24/03/22
39
19/04/22
37
17/05/22
39
21/06/22
36
21/07/22
36
16/08/22
31
18/10/22
22
16/11/22
19
13/12/22
32