| Moyennes annuelles par paramètre | Valeur seuil | Année(s) | ||||||||||
| 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2002-2006 | ||
Nitrates (mg(NO3)/L) | 50 | - | - | 27.2 | 39 | 34 | 34 | 42 | 28.7 | 24.1 | 34 | - |
0.5 | - | - | - | - | - | - | - | - | - | - | - | |
- Atrazine déséthyl (µg/L) | 0.9 | - | - | 0.102 | 0.105 | 0.07 | 0.057 | 0.047 | 0.055 | 0.067 | 0.113 | - |
- Atrazine (µg/L) | 0.9 | - | - | 0.067 | 0.143 | 0.0267 | <0.03 | 0.02 | <0.03 | 0.0167 | 0.0217 | - |
- Métazachlore (µg/L) | 0.9 | - | - | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.01 | 0.03 | - |
- Isoproturon (µg/L) | 0.9 | - | - | 0.043 | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.01 | <0.01 | - |
- Diuron (µg/L) | 0.9 | - | - | <0.05 | <0.05 | <0.05 | 0.15 | <0.05 | <0.05 | <0.01 | <0.01 | - |
- Chlortoluron (µg/L) | 0.9 | - | - | <0.05 | <0.05 | <0.05 | 0.1 | <0.05 | <0.05 | <0.02 | <0.02 | - |
- 2,4-D (µg/L) | 0.9 | - | - | - | - | <0.1 | <0.1 | <0.1 | 0.033 | <0.02 | <0.02 | - |
- Bentazone (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.05 | <0.05 | <0.05 | <0.01 | 0.0267 | - |
- Monolinuron (µg/L) | 0.9 | - | - | - | - | - | <0.05 | 0.033 | <0.05 | <0.02 | <0.02 | - |
- Bioresméthrine (µg/L) | 0.9 | - | - | - | - | - | <0.05 | <0.05 | 0.033 | - | - | - |
- Flufenoxuron (µg/L) | 0.9 | - | - | <0.1 | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.02 | <0.02 | - |
- Néburon (µg/L), Linuron (µg/L) | 0.9 | - | - | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.02 | <0.02 | - |
- Trifluraline (µg/L), HCH gamma (µg/L), HCH delta (µg/L), HCH alpha (µg/L) | 0.9 | - | - | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | - |
- Terbuthylazine (µg/L), Simazine (µg/L), Métolachlore (µg/L), Atrazine déisopropyl (µg/L) | 0.9 | - | - | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.01 | <0.01 | - |
- HCH bêta (µg/L) | 0.9 | - | - | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.005 | <0.005 | - |
- Cyanazine (µg/L) | 0.9 | - | - | <0.05 | <0.05 | <0.05 | <0.05 | <0.05 | <0.04 | <0.01 | <0.01 | - |
- Alachlore (µg/L) | 0.9 | - | - | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | <0.01 | <0.01 | - |
- 2,4,5-T (µg/L), Mécoprop total (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.05 | <0.05 | <0.05 | <0.02 | <0.02 | - |
- 2,4-MCPA (µg/L) | 0.9 | - | - | - | - | <0.1 | <0.1 | <0.1 | <0.05 | <0.02 | <0.02 | - |
- Ioxynil (µg/L) | 0.9 | - | - | <0.1 | - | - | <0.1 | <0.1 | <0.05 | <0.02 | <0.02 | - |
- Hexachlorobenzène (µg/L) | 0.9 | - | - | <0.005 | - | - | <0.005 | <0.005 | <0.005 | <0.002 | <0.002 | - |
- Heptachlore époxyde (µg/L) | 0.9 | - | - | <0.005 | - | - | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | - |
- Dichlorprop total (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.05 | <0.05 | <0.05 | <0.01 | <0.01 | - |
- Aldicarbe (µg/L) | 0.9 | - | - | <0.1 | - | - | <0.1 | <0.1 | <0.05 | <0.01 | <0.01 | - |
- Pentachlorobenzene (µg/L), Perméthrine (µg/L), Méthoxychlore (µg/L) | 0.9 | - | - | - | - | - | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | - |
- Nicosulfuron (µg/L), Hexaconazole (µg/L), Iprodione (µg/L) | 0.9 | - | - | - | - | - | <0.05 | <0.05 | <0.05 | <0.02 | <0.02 | - |
- Diflufenicanil (µg/L) | 0.9 | - | - | - | - | - | <0.01 | <0.005 | <0.005 | <0.02 | <0.02 | - |
- Sulcotrione (µg/L) | 0.9 | - | - | - | - | - | <0.05 | <0.05 | <0.05 | <0.1 | <0.02 | - |
- Tébutame (µg/L), Thiodicarbe (µg/L) | 0.9 | - | - | - | - | - | <0.1 | <0.1 | <0.05 | <0.01 | <0.01 | - |
- Chlorothalonil (µg/L) | 0.9 | - | - | - | - | - | <0.005 | <0.005 | <0.005 | <0.03 | <0.03 | - |
- Prochloraz (µg/L) | 0.9 | - | - | - | - | - | <0.05 | <0.05 | <0.05 | <0.03 | <0.03 | - |
- Pendiméthaline (µg/L) | 0.9 | - | - | - | - | - | <0.05 | <0.05 | <0.05 | <0.01 | <0.01 | - |
- Endosulfan B (µg/L), Endosulfan A (µg/L) | 0.9 | - | - | - | - | - | <0.005 | <0.005 | <0.005 | <0.005 | <0.005 | - |
- Dicofol (µg/L) | 0.9 | - | - | - | - | - | <0.05 | <0.02 | <0.02 | <0.01 | <0.01 | - |
- Carbendazime (µg/L) | 0.9 | - | - | - | - | - | <0.1 | <0.1 | <0.05 | <0.02 | <0.02 | - |
- Prosulfocarbe (µg/L) | 0.9 | - | - | - | - | - | <0.1 | <0.1 | <0.05 | <0.05 | <0.05 | - |
- Mercaptodiméthur (µg/L) | 0.9 | - | - | <0.1 | - | - | - | - | <0.05 | <0.01 | <0.01 | - |
- Formothion (µg/L) | 0.9 | - | - | <0.05 | - | - | - | - | <0.05 | <0.07 | <0.07 | - |
- Disulfoton (µg/L), Fénitrothion (µg/L), Diazinon (µg/L) | 0.9 | - | - | <0.05 | - | - | - | - | <0.05 | <0.01 | <0.01 | - |
- Parathion méthyl (µg/L), Parathion éthyl (µg/L), Azinphos méthyl (µg/L), Azinphos éthyl (µg/L), Chlorpyriphos-éthyl (µg/L) | 0.9 | - | - | <0.02 | - | - | - | - | <0.02 | <0.01 | <0.01 | - |
- Dichlorvos (µg/L) | 0.9 | - | - | <0.025 | - | - | - | - | <0.025 | <0.01 | <0.01 | - |
- Epoxiconazole (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.05 | <0.02 | <0.02 | - |
- Fenpropidine (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.1 | <0.02 | <0.02 | - |
- Aclonifène (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.1 | <0.01 | <0.01 | - |
- Glyphosate (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.1 | <0.1 | <0.1 | - |
- Malathion (µg/L), Fenthion (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.02 | <0.01 | <0.01 | - |
- Flusilazole (µg/L), Carbofuran (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.03 | <0.02 | <0.02 | - |
- Fenpropimorphe (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.05 | <0.01 | <0.01 | - |
- Imazaquine (µg/L), Resmethrine (µg/L), Fenothrine (µg/L), Ofurace (µg/L), Métalaxyl total (µg/L), Oxadixyl (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.05 | <0.05 | - |
- Pyrethrine (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.5 | <0.5 | - |
- Fluquinconazole (µg/L), Imidaclopride (µg/L), Depalléthrine (µg/L), Dicamba (µg/L), Métamitrone (µg/L), Deltaméthrine (µg/L), Cymoxanil (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.02 | <0.02 | - |
- Clopyralide (µg/L), Glufosinate (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.1 | <0.1 | - |
- Propachlore (µg/L), Chlorpyriphos-méthyl (µg/L), Ethoprophos (µg/L), Chlorfenvinphos (µg/L), Méthomyl (µg/L), Butraline (µg/L), Lambda-cyhalothrine (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.01 | <0.01 | - |
- Métribuzine (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.03 | <0.03 | - |
- Diquat (µg/L), Paraquat (µg/L) | 0.9 | - | - | <0.1 | - | - | - | - | <5 | - | - | - |
- Silvex (µg/L), 2,4-MCPB (µg/L), 2,4-DB (µg/L) | 0.9 | - | - | - | - | <0.05 | - | - | - | - | - | - |
- Aminotriazole (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.1 | - | - | - |
- Heptachlore (µg/L) | 0 | - | - | <0.01 | - | - | <0.01 | <0.01 | <0.01 | <0.005 | <0.005 | - |
- Dieldrine (µg/L) | 0 | - | - | <0.005 | - | - | <0.005 | <0.005 | <0.005 | <0.003 | <0.003 | - |
- Aldrine (µg/L) | 0 | - | - | <0.005 | - | - | <0.005 | <0.005 | <0.005 | <0.001 | <0.001 | - |
- Pentachlorophénol (µg/L) | 0 | - | - | - | - | - | - | - | - | <0.01 | <0.01 | - |
|
![]() |
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||





