ORTHON À MARESCHE, paramètre Nitrates
mg(NO3)/L
14/02/18
78
12/04/18
25
14/06/18
44
11/12/18
74
13/02/19
70
04/04/19
49
14/06/19
28
04/12/19
67
07/11/22
1
06/12/22
22
10/01/23
44
07/02/23
52
09/03/23
33
07/04/23
35
11/05/23
27
07/06/23
2.4
05/07/23
0.7
16/08/23
1.1
08/09/23
12