RAU DE GESVRES à CHAPELLE-SUR-ERDRE (LA), paramètre Nitrates mg(NO3)/L

12/01/10
17.2
03/02/10
15.2
17/03/10
15.9
19/04/10
13.7
10/05/10
13.8
16/06/10
11.6
01/07/10
9.9
02/08/10
7.7
27/09/10
8.9
21/10/10
8.5
08/11/10
12.1
08/12/10
11.8
26/01/11
36.1
07/02/11
14.2
22/03/11
13.9
06/04/11
13
10/05/11
6.4
23/06/11
9.6
12/07/11
9.5
17/08/11
7.8
07/09/11
7.8
05/10/11
5.5
21/11/11
5.6
15/12/11
15.4
18/01/12
15.2
22/02/12
13.5
13/03/12
13.2
25/04/12
8.3
23/05/12
11.1
21/06/12
10.2
10/07/12
0.9
24/08/12
3.5
17/09/12
6
04/10/12
6.2
09/11/12
12
05/12/12
9.7
25/02/13
17.9
04/04/13
15.2
28/06/13
14.4
07/08/13
12
14/10/13
8.5
05/12/13
13
18/02/14
12
01/04/14
11
24/06/14
13
04/08/14
9.9
08/10/14
6.9
02/12/14
11
13/02/15
13
17/04/15
15
15/06/15
12
20/08/15
6.9
12/10/15
6.8
11/12/15
8.3
28/04/16
12.6
27/06/16
9.6
25/08/16
9.1
21/10/16
8.6
20/12/16
10.2
27/02/17
13.3
27/04/17
11.8
29/06/17
2.2
30/08/17
0.6
26/10/17
2.5
19/12/17
18
25/01/18
12
28/02/18
15
23/03/18
12
27/04/18
10
29/05/18
8.2
28/06/18
10
31/07/18
6.6
31/08/18
8.3
21/09/18
5.2
18/10/18
2.7
30/11/18
13
28/02/19
13
26/04/19
7.3
05/07/19
6.2
30/08/19
1.3
28/10/19
7.2
30/12/19
13
28/02/20
5.9
28/04/20
8.4
30/06/20
8.9
31/08/20
6.1
28/10/20
8
18/02/21
12
26/04/21
12
18/06/21
7.7
27/08/21
5
22/10/21
5.4
22/12/21
10
26/01/22
12
25/02/22
10
15/03/22
8.5
29/04/22
9.4
19/05/22
10
28/06/22
7.8
26/07/22
1.8