ORTHE à SAINT-PIERRE-SUR-ORTHE, paramètre Nitrates mg(NO3)/L

08/01/13 40	05/02/13 32	18/03/13 37	08/04/13 40	13/05/13 42	04/06/13 41	02/07/13 41	05/08/13 40	09/09/13 40	08/10/13 37	13/11/13 30	09/12/13 40
07/01/14 30	11/02/14 35	18/03/14 39	14/04/14 11	13/05/14 30	10/06/14 39	07/07/14 16	04/08/14 31	10/09/14 39	07/10/14 34	17/11/14 24	09/12/14 33
15/01/15 32	04/02/15 20	03/03/15 27	08/04/15 38	05/05/15 18	02/06/15 30	08/07/15 36	04/08/15 24	01/09/15 18	06/10/15 31	03/11/15 33	08/12/15 33
04/01/16 28	04/02/16 35	10/03/16 24	19/04/16 37	25/05/16 36	16/06/16 31	19/07/16 37	18/08/16 33	12/09/16 36	13/10/16 38	17/11/16 25	08/12/16 37
09/01/17 35	09/02/17 37	09/03/17 35	06/04/17 36	11/05/17 34	12/06/17 34	11/07/17 26	03/08/17 34	04/09/17 33	12/10/17 30.3	16/11/17 30	07/12/17 32
16/01/18 30	19/02/18 37	14/03/18 36	23/04/18 38	28/05/18 37	26/06/18 39	23/07/18 38	27/08/18 38	17/09/18 37	23/10/18 35	14/11/18 22	18/12/18 37
23/01/19 31	18/02/19 40	11/03/19 35	08/04/19 38	13/05/19 36	03/06/19 37	08/07/19 38	12/08/19 35	09/09/19 37	07/10/19 33	05/11/19 36	02/12/19 36
15/01/20 32	17/02/20 33	09/03/20 34	05/05/20 37	08/06/20 39	15/07/20 39	17/08/20 37	09/09/20 37	05/10/20 32	02/11/20 24	07/12/20 32
13/01/21 40	15/02/21 42	10/03/21 40	19/04/21 38	19/05/21 32	08/06/21 36	09/08/21 31	08/09/21 36	05/10/21 27	15/11/21 23	06/12/21 32
12/01/22 37	08/02/22 38	10/03/22 39	05/04/22 37	09/05/22 36	13/06/22 37	06/07/22 36	08/08/22 36	06/09/22 33	10/10/22 34	08/11/22 26	12/12/22 34
11/01/23 28	07/02/23 39	08/03/23 34	04/04/23 36	11/05/23 28	05/06/23 32	05/07/23 34	02/08/23 21	06/09/23 33	04/10/23 32	08/11/23 38	05/12/23 26