| Moyennes annuelles par paramètre | Valeur seuil | Année(s) | ||||||||||
| 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2001-2005 | ||
Nitrates (mg(NO3)/L) | 50 | - | - | - | 0.53 | 0.77 | 0.35 | 1.1 | 0.55 | 4 | 3.8 | - |
0.5 | - | - | - | - | - | - | - | - | - | - | - | |
- Atrazine (µg/L) | 0.9 | - | - | - | <0.02 | <0.02 | 0.0203 | 0.017 | <0.025 | <0.025 | <0.01 | - |
- Métolachlore (µg/L) | 0.9 | - | - | - | <0.02 | <0.02 | <0.02 | 0.0067 | <0.01 | <0.01 | <0.01 | - |
- Linuron (µg/L) | 0.9 | - | - | - | <0.03 | <0.03 | <0.03 | <0.025 | <0.025 | 0.0217 | <0.02 | - |
- Atrazine déisopropyl (µg/L) | 0.9 | - | - | - | <0.04 | <0.04 | <0.04 | 0.0187 | <0.025 | <0.025 | <0.01 | - |
- Atrazine déséthyl (µg/L) | 0.9 | - | - | - | <0.04 | <0.04 | <0.04 | 0.0177 | <0.025 | <0.025 | <0.01 | - |
- Flufenoxuron (µg/L) | 0.9 | - | - | - | <0.05 | <0.05 | <0.05 | <0.025 | <0.025 | <0.025 | <0.02 | - |
- Métazachlore (µg/L), Alachlore (µg/L) | 0.9 | - | - | - | <0.02 | <0.02 | <0.02 | <0.01 | <0.01 | <0.01 | <0.01 | - |
- Néburon (µg/L) | 0.9 | - | - | - | <0.04 | <0.04 | <0.04 | <0.025 | <0.025 | <0.025 | <0.02 | - |
- Trifluraline (µg/L), HCH gamma (µg/L), HCH delta (µg/L), HCH bêta (µg/L), HCH alpha (µg/L) | 0.9 | - | - | - | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.005 | - |
- Terbuthylazine (µg/L), Simazine (µg/L) | 0.9 | - | - | - | <0.02 | <0.02 | <0.02 | <0.025 | <0.025 | <0.025 | <0.01 | - |
- Isoproturon (µg/L), Cyanazine (µg/L) | 0.9 | - | - | - | <0.03 | <0.03 | <0.03 | <0.025 | <0.025 | <0.025 | <0.01 | - |
- Diuron (µg/L) | 0.9 | - | - | - | <0.05 | <0.05 | <0.05 | <0.025 | <0.025 | <0.025 | <0.01 | - |
- Chlortoluron (µg/L) | 0.9 | - | - | - | <0.02 | <0.03 | <0.02 | <0.025 | <0.025 | <0.025 | <0.02 | - |
- Heptachlore époxyde (µg/L) | 0.9 | - | - | - | <0.01 | - | - | <0.01 | <0.01 | <0.01 | <0.005 | - |
- Méthoxychlore (µg/L) | 0.9 | - | - | - | - | - | - | <0.01 | <0.01 | <0.01 | <0.01 | - |
- Monolinuron (µg/L) | 0.9 | - | - | - | - | - | - | <0.05 | <0.05 | <0.05 | <0.02 | - |
- Endosulfan B (µg/L), Endosulfan A (µg/L) | 0.9 | - | - | - | - | - | - | <0.01 | <0.01 | <0.01 | <0.005 | - |
- Mercaptodiméthur (µg/L) | 0.9 | - | - | - | <0.05 | - | - | - | - | <0.01 | <0.01 | - |
- Formothion (µg/L) | 0.9 | - | - | - | <0.03 | - | - | - | - | <0.05 | <0.07 | - |
- Disulfoton (µg/L), Fénitrothion (µg/L), Azinphos éthyl (µg/L) | 0.9 | - | - | - | <0.04 | - | - | - | - | <0.01 | <0.01 | - |
- Parathion méthyl (µg/L) | 0.9 | - | - | - | <0.02 | - | - | - | - | <0.01 | <0.01 | - |
- Parathion éthyl (µg/L) | 0.9 | - | - | - | <0.01 | - | - | - | - | <0.01 | <0.01 | - |
- Ioxynil (µg/L) | 0.9 | - | - | - | <0.05 | - | - | - | - | <0.1 | <0.02 | - |
- Hexachlorobenzène (µg/L) | 0.9 | - | - | - | <0.01 | - | - | - | - | <0.01 | <0.002 | - |
- Dichlorvos (µg/L) | 0.9 | - | - | - | <0.03 | - | - | - | - | <0.05 | <0.01 | - |
- Diazinon (µg/L), Azinphos méthyl (µg/L), Chlorpyriphos-éthyl (µg/L) | 0.9 | - | - | - | <0.03 | - | - | - | - | <0.01 | <0.01 | - |
- Aldicarbe (µg/L) | 0.9 | - | - | - | <0.05 | - | - | - | - | <0.1 | <0.01 | - |
- Pentachlorobenzene (µg/L), Aclonifène (µg/L), Tébutame (µg/L), Pendiméthaline (µg/L), Malathion (µg/L), Fenthion (µg/L), Fenpropimorphe (µg/L), Dicofol (µg/L), Thiodicarbe (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.01 | <0.01 | - |
- Nicosulfuron (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.05 | <0.02 | - |
- Diflufenicanil (µg/L), Fenpropidine (µg/L), Iprodione (µg/L), Carbofuran (µg/L), Carbendazime (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.01 | <0.02 | - |
- Diquat (µg/L), Paraquat (µg/L) | 0.9 | - | - | - | <0.05 | - | - | - | - | <0.5 | - | - |
- Sulcotrione (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.01 | <0.1 | - |
- Glyphosate (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.1 | <0.1 | - |
- 2,4,5-T (µg/L), Mécoprop total (µg/L), 2,4-MCPA (µg/L), 2,4-D (µg/L) | 0.9 | - | - | - | - | - | <0.01 | - | - | - | <0.02 | - |
- Dichlorprop total (µg/L), Bentazone (µg/L) | 0.9 | - | - | - | - | - | <0.01 | - | - | - | <0.01 | - |
- Prosulfocarbe (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.01 | <0.05 | - |
- Imazaquine (µg/L), Resmethrine (µg/L), Fenothrine (µg/L), Ofurace (µg/L), Métalaxyl total (µg/L), Oxadixyl (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.05 | - |
- Pyrethrine (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.5 | - |
- Fluquinconazole (µg/L), Imidaclopride (µg/L), Epoxiconazole (µg/L), Depalléthrine (µg/L), Dicamba (µg/L), Hexaconazole (µg/L), Métamitrone (µg/L), Flusilazole (µg/L), Deltaméthrine (µg/L), Cymoxanil (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.02 | - |
- Clopyralide (µg/L), Glufosinate (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.1 | - |
- Propachlore (µg/L), Chlorpyriphos-méthyl (µg/L), Perméthrine (µg/L), Ethoprophos (µg/L), Chlorfenvinphos (µg/L), Méthomyl (µg/L), Butraline (µg/L), Lambda-cyhalothrine (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.01 | - |
- Silvex (µg/L), 2,4-MCPB (µg/L), 2,4-DB (µg/L) | 0.9 | - | - | - | - | - | <0.01 | - | - | - | - | - |
- Chlorothalonil (µg/L), Prochloraz (µg/L), Métribuzine (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.03 | - |
- Aminotriazole (µg/L) | 0.9 | - | - | - | - | - | - | - | - | <0.01 | - | - |
- Heptachlore (µg/L) | 0 | - | - | - | <0.01 | - | - | <0.01 | <0.01 | <0.01 | <0.005 | - |
- Dieldrine (µg/L) | 0 | - | - | - | <0.02 | - | - | <0.01 | <0.01 | <0.01 | <0.003 | - |
- Aldrine (µg/L) | 0 | - | - | - | <0.01 | - | - | <0.01 | <0.01 | <0.01 | <0.001 | - |
- Pentachlorophénol (µg/L) | 0 | - | - | - | - | - | - | - | - | - | <0.01 | - |
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