MERDEREAU à SAINT-PAUL-LE-GAULTIER, paramètre Nitrates mg(NO3)/L

25/02/13
42.7
03/04/13
41.6
20/06/13
38.4
21/08/13
41.5
15/10/13
32.7
03/12/13
35
17/02/14
36
24/04/14
39
18/06/14
42
19/08/14
28
15/10/14
32
16/12/14
29
23/02/15
25
20/04/15
37
16/06/15
33
18/08/15
33
22/10/15
30
17/12/15
24
08/02/16
21.8
19/04/16
34.1
03/06/16
30.8
21/08/16
35.7
18/10/16
29.3
06/12/16
30.9
08/02/17
34.4
07/04/17
35.7
23/06/17
32.1
10/08/17
18
17/10/17
21
13/12/17
32
13/02/18
37
20/04/18
34
13/06/18
20
16/08/18
37
15/10/18
25
10/12/18
33
12/02/19
37
03/04/19
35
13/06/19
21
02/08/19
30
09/10/19
17
03/12/19
38
13/02/20
30
10/06/20
42
05/08/20
34
13/10/20
24
19/11/20
20
03/12/20
27
09/02/21
54
06/04/21
35
03/06/21
27
10/08/21
20
05/10/21
20
03/12/21
22
04/02/22
37
06/04/22
32
07/06/22
35
04/08/22
27
05/10/22
22
05/12/22
27
06/02/23
40
06/04/23
30
06/06/23
38
08/08/23
25
12/10/23
28