SEVRE NIORTAISE à EXOUDUN, paramètre Nitrates mg(NO3)/L

19/01/12 46.2	20/02/12 41.7	26/03/12 37.4	25/04/12 36.5	22/05/12 43.2	12/06/12 43.2	19/07/12 42.1	29/08/12 37.3	11/09/12 36.3	17/10/12 43.2	07/11/12 39.2	10/12/12 42.3
26/02/13 46.4	11/04/13 25.3	13/06/13 38.6	19/08/13 39.8	07/10/13 38.6	19/12/13 43
26/02/14 42	15/04/14 41	25/06/14 42	19/08/14 37	22/10/14 40	16/12/14 39
26/02/15 39	28/04/15 40	26/06/15 38	27/08/15 34	27/10/15 36	08/12/15 41
24/02/16 37.7	05/04/16 39.8	02/06/16 50.3	09/08/16 34.1	03/10/16 36.3	20/12/16 35.4
02/02/17 36.8	04/04/17 41.7	14/06/17 38.2	01/08/17 34	02/10/17 35	06/12/17 34
09/01/18 46	01/02/18 42	27/03/18 45	03/04/18 42	02/05/18 43	04/06/18 42	20/07/18 40	01/08/18 40	03/09/18 38	01/10/18 38	05/11/18 35	03/12/18 43
06/02/19 45	25/04/19 40	27/06/19 43	26/08/19 39	29/10/19 46	18/12/19 49
04/02/20 45	15/06/20 44	18/08/20 40	16/10/20 39	16/11/20 43	14/12/20 45
17/02/21 46	21/04/21 44	21/06/21 41	18/08/21 39	20/10/21 40	15/12/21 43
15/02/22 42	06/04/22 41	13/06/22 38	12/08/22 38	17/10/22 37	14/12/22 37
14/02/23 47	14/04/23 45	14/06/23 41	14/08/23 37	24/10/23 35