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

26/01/16
25
22/02/16
65
30/03/16
52
27/04/16
5.2
25/05/16
39
28/06/16
48
27/07/16
50
25/10/16
13
22/11/16
19
21/12/16
25
27/02/17
34
28/03/17
49
24/04/17
52
27/06/17
35
26/09/17
8.9
30/10/17
3
28/11/17
19
30/01/18
59
27/02/18
65
28/03/18
58
24/04/18
63
30/05/18
52
27/06/18
57
30/07/18
40
27/08/18
40
31/01/19
56
27/02/19
65
28/03/19
62
30/04/19
57
28/05/19
58
26/06/19
51
31/07/19
51
27/08/19
40
30/10/19
46
27/11/19
51
16/12/19
42
29/01/20
62
26/02/20
60
30/03/20
58
29/04/20
53
27/05/20
63
30/06/20
60
30/07/20
54
27/08/20
45
28/09/20
40
27/10/20
51
25/11/20
61
22/12/20
49
24/01/22
62
22/02/22
57.6
28/03/22
60.2
28/04/22
61.6
31/05/22
66
28/06/22
51.8
27/07/22
9.3
29/11/22
54.9
20/12/22
44.2