Moyennes annuelles par paramètre | Valeur seuil | Année(s) | ||||||||||
1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 1996-2000 | ||
Nitrates (mg(NO3)/L) | 50 | - | - | - | - | - | - | - | - | 0.38 | 0.7 | - |
0.5 | - | - | - | - | - | - | - | - | - | - | - | |
- Flufenoxuron (?g/L), Diuron (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.05 | <0.05 | - |
- Metazachlore (?g/L), Terbuthylazine (?g/L), Simazine (?g/L), Metolachlore (?g/L), Chlortoluron (?g/L), Atrazine (?g/L), Alachlore (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.02 | <0.02 | - |
- Neburon (?g/L), Atrazine deisopropyl (?g/L), Atrazine desethyl (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.04 | <0.04 | - |
- Trifluraline (?g/L), HCH gamma (?g/L), HCH delta (?g/L), HCH beta (?g/L), HCH alpha (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.01 | <0.01 | - |
- Linuron (?g/L), Isoproturon (?g/L), Cyanazine (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.03 | <0.03 | - |
- Diquat (?g/L), Paraquat (?g/L), Mercaptodimethur (?g/L), Ioxynil (?g/L), Aldicarbe (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.05 | - | - |
- Formothion (?g/L), Dichlorvos (?g/L), Diazinon (?g/L), Azinphos methyl (?g/L), Chlorpyriphos-ethyl (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.03 | - | - |
- Disulfoton (?g/L), Fenitrothion (?g/L), Azinphos ethyl (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.04 | - | - |
- Parathion methyl (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.02 | - | - |
- Parathion ethyl (?g/L), Hexachlorobenzene (?g/L), Heptachlore epoxyde (?g/L) | 0.9 | - | - | - | - | - | - | - | - | <0.01 | - | - |
- Heptachlore (?g/L), Aldrine (?g/L) | 0 | - | - | - | - | - | - | - | - | <0.01 | - | - |
- Dieldrine (?g/L) | 0 | - | - | - | - | - | - | - | - | <0.02 | - | - |
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