SEVRE NANTAISE à VERTOU, paramètre Nitrites mg(NO2)/L

12/01/10
0.15
21/01/10
0.16
27/01/10
0.17
04/02/10
0.17
09/02/10
0.18
15/02/10
0.15
04/03/10
0.17
10/03/10
0.11
17/03/10
0.08
02/04/10
0.14
14/04/10
0.06
26/04/10
0.09
05/05/10
0.17
11/05/10
0.15
17/06/10
0.14
28/06/10
0.09
15/07/10
0.05
03/08/10
0.03
27/09/10
0.07
11/10/10
0.1
09/11/10
0.04
23/11/10
0.41
08/12/10
0.21
14/12/10
0.18
11/01/11
0.09
18/01/11
0.23
24/01/11
0.2
01/02/11
0.17
09/02/11
0.18
24/02/11
0.16
08/03/11
0.1
16/03/11
0.06
28/03/11
0.06
04/04/11
0.09
13/04/11
0.1
20/04/11
0.12
10/05/11
0.2
24/05/11
0.12
22/06/11
0.05
28/06/11
0.07
04/07/11
0.02
Limite de quantif.
09/08/11
0.02
Limite de quantif.
14/09/11
0.1
06/10/11
0.07
15/11/11
0.07
24/11/11
0.09
08/12/11
0.11
13/12/11
0.16
13/01/12
0.19
18/01/12
0.19
31/01/12
0.13
09/02/12
0.11
22/02/12
0.1
29/02/12
0.09
19/03/12
0.06
22/03/12
0.06
28/03/12
0.07
11/04/12
0.09
18/04/12
0.09
24/04/12
0.09
14/05/12
0.15
22/05/12
0.11
20/06/12
0.08
26/06/12
0.07
04/07/12
0.07
23/08/12
0.04
12/09/12
0.04
12/10/12
0.14
07/11/12
0.17
21/11/12
0.16
04/12/12
0.1
11/12/12
0.14
16/01/13
0.19
23/01/13
0.14
28/01/13
0.12
05/02/13
0.11
13/02/13
0.07
25/02/13
0.08
07/03/13
0.07
14/03/13
0.12
21/03/13
0.1
03/04/13
0.11
11/04/13
0.11
22/04/13
0.04
14/05/13
0.11
21/05/13
0.08
17/06/13
0.09
26/06/13
0.1
02/07/13
0.05
09/08/13
0.06
04/09/13
0.03
25/10/13
0.04
04/11/13
0.15
19/11/13
0.2
04/12/13
0.13
16/12/13
0.1
14/01/14
0.18
21/01/14
0.11
28/01/14
0.1
10/02/14
0.09
19/02/14
0.1
25/02/14
0.11
04/03/14
0.09
11/03/14
0.09
18/03/14
0.04
03/04/14
0.06
10/04/14
0.06
23/04/14
0.05
22/05/14
0.07
26/05/14
0.13
16/06/14
0.06
26/06/14
0.06
10/07/14
0.04
05/08/14
0.04
10/09/14
0.04
13/10/14
0.03
20/11/14
0.18
28/11/14
0.16
03/12/14
0.13
23/12/14
0.17
09/01/15
0.12
16/01/15
0.11
23/01/15
0.11
05/02/15
0.11
13/02/15
0.11
20/02/15
0.13
13/03/15
0.09
24/03/15
0.07
31/03/15
0.08
07/04/15
0.06
17/04/15
0.05
24/04/15
0.06
11/05/15
0.13
20/05/15
0.07
18/06/15
0.1
29/06/15
0.08
30/07/15
0.06
21/08/15
0.05
29/09/15
0.12
13/10/15
0.15
12/11/15
0.06
20/11/15
0.06
11/12/15
0.13
23/12/15
0.13
27/01/16
0.16
19/02/16
0.1
29/02/16
0.09
01/03/16
0.08
14/03/16
0.09
30/03/16
0.09
04/04/16
0.1
28/04/16
0.05
29/04/16
0.01
10/05/16
0.07
27/05/16
0.08
01/06/16
0.19
27/06/16
0.08
29/07/16
0.07
23/08/16
0.06
13/09/16
0.05
21/10/16
0.03
07/11/16
0.05
28/11/16
0.06
05/12/16
0.22
16/12/16
0.23
02/01/17
0.12
12/01/17
0.1
23/01/17
0.08
01/02/17
0.05
13/02/17
0.23
22/02/17
0.13
01/03/17
0.11
13/03/17
0.18
21/03/17
0.16
03/04/17
0.1
13/04/17
0.08
24/04/17
0.1
09/05/17
0.09
31/05/17
0.12
13/06/17
0.09
26/06/17
0.07
31/07/17
0.04
28/08/17
0.01
Limite de quantif.
14/09/17
0.01
Limite de quantif.
25/10/17
0.04
06/11/17
0.01
28/11/17
0.06
11/12/17
0.07
22/12/17
0.18
08/01/18
0.32
18/01/18
0.28
29/01/18
0.23
06/02/18
0.16
16/02/18
0.31
26/02/18
0.02
08/03/18
0.16
19/03/18
0.15
29/03/18
0.14
06/04/18
0.14
16/04/18
0.16
26/04/18
0.11
04/05/18
0.11
17/05/18
0.11
06/06/18
0.19
18/06/18
0.2
31/07/18
0.08
31/08/18
0.04
21/09/18
0.01
Limite de quantif.
25/10/18
0.13
12/11/18
0.06
22/11/18
0.44
06/12/18
0.18
17/12/18
0.23
02/01/19
0.18
16/01/19
0.18
30/01/19
0.15
05/02/19
0.19
15/02/19
0.09
25/02/19
0.09
04/03/19
0.06
15/03/19
0.12
25/03/19
0.07
01/04/19
0.04
15/04/19
0.05
25/04/19
0.09
02/05/19
0.1
13/05/19
0.12
11/06/19
0.07
18/06/19
0.07
18/07/19
0.06
30/08/19
0.01
Limite de quantif.
11/09/19
0.01
30/10/19
0.06
04/11/19
0.33
14/11/19
0.21
16/12/19
0.16
26/12/19
0.15
06/01/20
0.2
16/01/20
0.17
27/01/20
0.11
13/02/20
0.15
24/02/20
0.1
12/03/20
0.13
23/04/20
0.11
18/05/20
0.14
29/05/20
0.08
19/06/20
0.08
29/06/20
0.07
24/07/20
0.08
03/08/20
0.06
18/09/20
0.01
Limite de quantif.
01/10/20
0.08
02/11/20
0.16
09/11/20
0.17
16/11/20
0.15
23/11/20
0.13
01/12/20
0.1
14/12/20
0.16
04/01/21
0.12
12/01/21
0.15
20/01/21
0.21
12/02/21
0.12
22/02/21
0.18
11/03/21
0.04
23/03/21
0.02
31/03/21
0.03
01/04/21
0.03
14/04/21
0.07
19/04/21
0.07
03/05/21
0.1
19/05/21
0.06
01/06/21
0.07
23/06/21
0.22
01/07/21
0.15
02/08/21
0.05
01/09/21
0.04
01/10/21
0.01
02/11/21
0.04
12/11/21
0.04
01/12/21
0.04
10/12/21
0.14
03/01/22
0.16
20/01/22
0.15
27/01/22
0.14
01/02/22
0.12
11/02/22
0.1
21/02/22
0.18
01/03/22
0.14
08/03/22
0.08
16/03/22
0.07
01/04/22
0.07
11/04/22
0.09
19/04/22
0.1
02/05/22
0.16
16/05/22
0.12