CHEZINE à NANTES, paramètre Nitrates mg(NO3)/L

17/02/10
10.8
12/04/10
6.9
07/06/10
5.4
27/07/10
2.4
19/10/10
1.9
02/12/10
10.9
14/02/11
6.6
11/04/11
9.1
08/06/11
5.3
23/08/11
4.2
17/10/11
4.4
13/12/11
3
29/02/12
8.5
10/04/12
3.4
08/06/12
5.3
05/09/12
6.6
24/10/12
12.4
11/12/12
10
01/03/13
9.5
12/04/13
4.8
20/06/13
6.1
20/08/13
5.6
29/10/13
5.2
18/12/13
8.3
27/02/14
2.5
08/04/14
4.9
19/06/14
7
17/07/14
6
27/10/14
4.9
12/12/14
6.3
24/02/15
4.9
14/04/15
5.2
12/06/15
3.1
27/08/15
1.7
28/10/15
3.7
16/12/15
6
09/02/16
7
21/04/16
5.7
08/06/16
8.9
26/08/16
5.8
25/10/16
4.4
16/12/16
7.9
16/02/17
11.6
25/04/17
8.2
02/06/17
6.4
25/08/17
2.8
25/10/17
3.1
12/12/17
6.7
27/02/18
10.2
12/04/18
6.7
07/06/18
4.9
21/08/18
4.8
19/10/18
5.2
12/12/18
12.1
18/02/20
5.3
15/04/20
9
22/06/20
7.1
17/08/20
2.5
15/10/20
7
14/12/20
6.7
22/02/21
6.8
14/04/21
6.9
18/06/21
3.3
31/08/21
7
15/10/21
7.4
29/12/21
5.4
15/02/22
4.6
05/04/22
6.1
10/06/22
5.3