GRANDE MAINE à LES HERBIERS, paramètre Nitrites mg(NO2)/L

13/01/09
0.3
16/02/09
0.14
23/03/09
0.11
28/04/09
0.29
28/05/09
0.23
26/06/09
0.5
20/07/09
0.17
25/08/09
0.14
28/09/09
0.07
26/10/09
0.06
19/11/09
0.35
15/12/09
0.25
12/01/10
0.2
25/02/10
0.13
22/03/10
0.25
21/04/10
0.19
11/05/10
0.16
22/06/10
0.59
15/07/10
0.82
09/08/10
1.47
08/09/10
0.41
18/10/10
0.08
15/11/10
0.15
07/12/10
0.16
10/01/11
0.14
14/02/11
0.18
23/03/11
0.19
19/04/11
0.38
10/05/11
0.23
08/06/11
0.43
04/07/11
0.63
24/08/11
0.29
19/09/11
0.12
10/10/11
0.54
09/11/11
0.33
19/12/11
0.18
16/01/12
0.13
13/02/12
0.11
22/03/12
0.5
24/04/12
0.21
21/05/12
0.2
14/06/12
0.11
12/07/12
0.25
21/08/12
1.24
20/09/12
1.82
15/10/12
0.27
12/11/12
0.21
20/12/12
0.16
22/01/13
0.1
20/02/13
0.15
21/03/13
0.15
15/04/13
0.18
15/05/13
0.24
16/06/13
0.55
10/07/13
0.15
20/08/13
0.15
19/09/13
0.13
14/10/13
0.096
19/11/13
0.24
18/12/13
0.35
22/01/14
0.17
19/02/14
0.12
12/03/14
0.08
16/04/14
0.44
14/05/14
0.41
19/06/14
0.16
15/07/14
0.06
20/08/14
0.14
16/09/14
1.3
06/10/14
0.1
12/11/14
0.12
09/12/14
0.2
07/01/15
0.26
11/02/15
0.16
11/03/15
0.21
15/04/15
0.35
12/05/15
0.16
16/06/15
0.43
07/07/15
0.14
18/08/15
0.16
17/09/15
0.073
14/10/15
0.74
18/11/15
0.42
16/12/15
0.52
12/01/16
0.14
16/02/16
0.12
10/03/16
0.16
11/04/16
0.18
17/05/16
0.23
22/06/16
0.26
20/07/16
0.96
25/08/16
1.5
20/09/16
1.5
17/10/16
0.15
15/11/16
0.44
14/12/16
0.85
04/01/17
0.44
06/02/17
0.16
07/03/17
0.21
05/04/17
0.18
10/05/17
0.27
07/06/17
0.31
05/07/17
0.39
02/08/17
0.29
06/09/17
2.2
04/10/17
0.56
07/11/17
0.74
14/12/17
0.4
15/01/18
0.2
19/02/18
0.21
12/03/18
0.14
16/04/18
0.22
22/05/18
0.39
18/06/18
0.39
19/07/18
0.17
07/08/18
0.45
10/09/18
0.18
15/10/18
0.86
19/11/18
0.28
17/12/18
0.13
31/01/19
0.18
20/02/19
0.089
20/03/19
0.11
17/04/19
0.3
16/05/19
0.45
13/06/19
0.55
10/07/19
0.17
14/08/19
0.33
11/09/19
0.28
16/10/19
0.51
14/11/19
0.19
11/12/19
0.15
14/01/20
0.11
11/02/20
0.6
10/03/20
0.16
25/05/20
0.3
22/06/20
0.16
15/07/20
0.21
24/08/20
0.098
14/09/20
0.028
12/10/20
0.25
10/11/20
0.44
15/12/20
0.22