RUISSEAU DE SAINT ETIENNE A LA CHAPELLE-SAINT-ETIENNE, paramètre Nitrates mg(NO3)/L

24/01/22
27
24/02/22
23
01/03/22
25
20/04/22
23
24/05/22
25
24/06/22
24
27/07/22
16
24/08/22
9.6
22/09/22
15
20/10/22
14
30/11/22
25
30/12/22
17
20/01/23
25
17/02/23
27
23/03/23
15
18/04/23
23
26/05/23
25
28/06/23
26
20/07/23
23
23/08/23
20
26/09/23
20
25/10/23
13
28/11/23
19
19/12/23
23