CHENAUE A SAINT-XANDRE, paramètre Nitrates mg(NO3)/L

20/01/12
51.5
06/03/12
43.2
03/05/12
49.4
02/07/12
28.2
12/11/12
57.1
25/03/13
54.1
06/05/13
1.1
04/07/13
44.9
30/09/13
30.2
14/11/13
29.9
14/11/13
57.6
13/01/14
63
14/03/14
52
12/05/14
42
09/07/14
37
24/09/14
39
03/11/14
35
19/01/15
44
03/03/15
54
15/05/15
48
27/08/15
28
09/10/15
40
10/11/15
36