LE TREZON A TOUTLEMONDE, paramètre Nitrates mg(NO3)/L

16/01/15
33
19/02/15
33
16/03/15
20
16/04/15
11
02/06/15
5.6
13/10/15
22
13/11/15
11
07/12/15
42
03/03/16
18
31/03/16
9.5
18/04/16
11
23/06/16
4.2
11/10/16
0.9
15/11/16
0.7
12/12/16
2.7
08/03/17
61
10/04/17
15
19/06/17
2.3
13/11/17
1.4
04/12/17
3.7
06/03/19
21.9
09/04/19
15.5
18/06/19
5.6
08/10/19
0.5
05/11/19
63.9
03/12/19
70.7