PETITE BOULOGNE à LA CHAPELLE-PALLUAU, paramètre Nitrates mg(NO3)/L

17/01/13
16
19/02/13
21
14/03/13
21
11/04/13
8.9
21/05/13
14
17/06/13
16
11/07/13
7.8
28/08/13
3.2
18/09/13
3.4
16/10/13
12
13/11/13
43
17/12/13
21
16/01/14
9.2
13/02/14
3.9
13/03/14
15
15/04/14
15
20/05/14
14
12/06/14
12
17/07/14
7.8
19/08/14
13
17/09/14
2.9
14/10/14
6.3
19/11/14
33
18/12/14
27
14/01/15
21
17/02/15
13
18/03/15
20
14/04/15
16
20/05/15
18
11/06/15
16
16/07/15
6.6
22/09/15
23
13/10/15
24
12/11/15
3.2
08/12/15
24
07/01/16
17
10/02/16
13
15/03/16
18
20/04/16
16
12/05/16
14
14/06/16
16
12/07/16
13
18/08/16
3.5
14/09/16
2.2
11/10/16
2.1
08/11/16
0.5
Limite de quantif.
06/12/16
27
03/01/17
34
07/02/17
63
06/03/17
32
04/04/17
22
09/05/17
12
06/06/17
10
04/07/17
8.3
01/08/17
1.4
04/09/17
0.5
Limite de quantif.
03/10/17
0.5
Limite de quantif.
09/11/17
0.5
Limite de quantif.
12/12/17
25
17/01/18
40
13/02/18
22
14/03/18
20
18/04/18
18
24/05/18
16
21/06/18
14
18/07/18
11
09/08/18
3.2
12/09/18
0.98
17/10/18
0.5
Limite de quantif.
21/11/18
20
19/12/18
30