YVEL à LOYAT, paramètre Nitrates mg(NO3)/L

12/02/13
37.9
18/04/13
36.7
12/06/13
34.3
11/10/13
0.8
16/10/13
1
31/10/13
25
20/11/13
39
29/11/13
39
11/12/13
38
18/12/13
35
30/01/14
38
17/02/14
34
28/02/14
28
18/03/14
41
15/04/14
35
18/04/14
38
29/04/14
22
19/05/14
32
27/05/14
25
16/06/14
32
17/06/14
32
25/06/14
18
18/07/14
23
12/08/14
13
19/08/14
13
28/08/14
17
16/09/14
13
02/10/14
11
12/12/14
32
13/01/15
30
29/01/15
37
13/02/15
39
17/02/15
21
26/02/15
33
13/04/15
37
16/04/15
34
29/04/15
31
28/05/15
28
12/06/15
29
25/06/15
22
29/07/15
4.8
06/08/15
4.5
27/08/15
3.3
30/09/15
9.3
06/10/15
6.1
28/10/15
1.2
26/11/15
20
07/12/15
13
22/12/15
18
27/01/16
37
22/02/16
38.4
18/04/16
35.1
27/04/16
32
25/05/16
20
23/06/16
20
28/07/16
12
29/08/16
3.1
30/08/16
2.1
29/09/16
1.3
26/10/16
2
23/11/16
16
15/12/16
7
21/12/16
6.6
16/02/17
43.7
29/03/17
28
10/04/17
27.7
26/04/17
29
29/05/17
25
29/06/17
7
26/07/17
2.9
29/08/17
1.5
10/10/17
1.7
31/10/17
13
14/12/17
41
20/12/17
8.7
30/01/18
43
15/02/18
32
27/02/18
46
28/03/18
33
19/04/18
39
24/04/18
37
30/05/18
28
30/05/18
29
18/06/18
31
27/06/18
31
05/07/18
24
30/07/18
18
02/08/18
17
27/08/18
7
23/10/18
1.3
30/10/18
2
Limite de quantif.
06/12/18
38
17/12/18
32
31/01/19
28
07/02/19
28
27/02/19
43
28/03/19
33
08/04/19
22
30/04/19
23
28/05/19
24
17/06/19
30
26/06/19
23
31/07/19
7
27/08/19
3
29/08/19
3.6
24/09/19
2
Limite de quantif.
14/10/19
2.2
30/10/19
32
27/11/19
28
16/12/19
33
16/12/19
34
29/01/20
29
13/02/20
40
26/02/20
31
30/03/20
39
29/04/20
23
27/05/20
31
23/06/20
35
30/06/20
31
30/07/20
26
27/08/20
11
28/09/20
7
06/10/20
24
27/10/20
23
17/11/20
23
25/11/20
32
08/12/20
26
22/12/20
24
16/02/21
31
08/04/21
35
17/06/21
20
19/08/21
25
21/10/21
24
14/12/21
30
24/01/22
39.8
15/02/22
20
22/02/22
17.9
28/03/22
32.3
19/04/22
28
28/04/22
29.8
31/05/22
24.4
03/06/22
25
28/06/22
11.3
27/07/22
2.1
19/08/22
0.5
Limite de quantif.
20/10/22
2.4
26/10/22
2.2
29/11/22
35.4
20/12/22
28
20/12/22
24.8
06/02/23
40
28/04/23
27
29/06/23
15
24/08/23
5
20/10/23
0.5
Limite de quantif.