| Moyennes annuelles par paramètre | Valeur seuil | Année(s) | ||||||||||
| 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2008-2012 | ||
Nitrates (mg(NO3)/L) | 50 | - | 15 | - | 9.4 | - | 4 | - | 21 | - | - | - |
Somme pesticides analyses (µg/L) | 0.5 | - | - | - | - | - | - | - | 0.002 | - | 0.002 | - |
- Atrazine déséthyl (µg/L) | 0.9 | - | <0.03 | - | <0.03 | - | <0.03 | - | 0.002 | - | 0.001 | - |
- Atrazine déisopropyl (µg/L) | 0.9 | - | <0.03 | - | <0.03 | - | <0.03 | - | <0.001 | - | 0.001 | - |
- Terbuthylazine (µg/L), Simazine (µg/L), Atrazine (µg/L) | 0.9 | - | <0.03 | - | <0.03 | - | <0.03 | - | <0.001 | - | <0.001 | - |
- Linuron (µg/L), Isoproturon (µg/L), Diuron (µg/L) | 0.9 | - | <0.05 | - | <0.05 | - | <0.05 | - | <0.001 | - | <0.001 | - |
- HCH gamma (µg/L) | 0.9 | - | <0.01 | - | <0.01 | - | <0.01 | - | <0.001 | - | <0.001 | - |
- Alachlore (µg/L) | 0.9 | - | <0.05 | - | <0.05 | - | <0.05 | - | <0.005 | - | <0.005 | - |
- Terbuthylazine désethyl (µg/L), Nicosulfuron (µg/L), Fenpropidine (µg/L), Tébuconazole (µg/L), Sulcotrione (µg/L), Tébutame (µg/L), Méthomyl (µg/L), 2,4-MCPA (µg/L), Fenpropimorphe (µg/L), 2,4-D (µg/L), Chlortoluron (µg/L), Carbofuran (µg/L), Bentazone (µg/L) | 0.9 | - | - | - | - | - | <0.05 | - | <0.001 | - | <0.001 | - |
- 2,6-Dichlorobenzamide (µg/L), Bromacil (µg/L), Dicamba (µg/L), Flusilazole (µg/L) | 0.9 | - | - | - | - | - | <0.05 | - | <0.005 | - | <0.005 | - |
- AMPA (µg/L), Glyphosate (µg/L) | 0.9 | - | - | - | - | - | <0.1 | - | <0.1 | - | <0.05 | - |
- Métalaxyl (µg/L) | 0.9 | - | - | - | - | - | <0.1 | - | <0.001 | - | <0.001 | - |
- Dichlobenil (µg/L) | 0.9 | - | - | - | - | - | <0.1 | - | <0.02 | - | <0.02 | - |
- Oxadiazon (µg/L) | 0.9 | - | - | - | - | - | <0.05 | - | <0.02 | - | <0.02 | - |
- Paraquat (µg/L) | 0.9 | - | - | - | - | - | <0.5 | - | <0.1 | - | <0.1 | - |
- Propazine (µg/L) | 0.9 | - | - | - | - | - | <0.03 | - | <0.001 | - | <0.001 | - |
- Captane (µg/L) | 0.9 | - | - | - | - | - | <0.05 | - | <0.05 | - | <0.05 | - |
- Anthraquinone (µg/L), Deltaméthrine (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.08 | - | <0.08 | - |
- Tefluthrine (µg/L), Bénomyl (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.02 | - | <0.02 | - |
- Oxamyl (µg/L), Lénacile (µg/L), Carbendazime (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.005 | - | <0.005 | - |
- Oxadixyl (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.001 | - | <0.001 | - |
- Mercaptodiméthur (µg/L), Ethoprophos (µg/L), Ioxynil (µg/L), Aldicarbe (µg/L) | 0.9 | - | <0.05 | - | <0.05 | - | - | - | - | - | - | - |
- Disulfoton (µg/L), Parathion éthyl (µg/L), Dichlorvos (µg/L), Diazinon (µg/L), Cyanazine (µg/L) | 0.9 | - | <0.03 | - | <0.03 | - | - | - | - | - | - | - |
- Trifluraline (µg/L) | 0.9 | - | <0.02 | - | <0.02 | - | - | - | - | - | - | - |
- HCH delta (µg/L), HCH bêta (µg/L), HCH alpha (µg/L), Hexachlorobenzène (µg/L), Heptachlore époxyde (µg/L) | 0.9 | - | <0.01 | - | <0.01 | - | - | - | - | - | - | - |
- Aminotriazole (µg/L) | 0.9 | - | <0.1 | - | <0.1 | - | - | - | - | - | - | - |
- Lambda-cyhalothrine (µg/L) | 0.9 | - | - | - | - | - | - | - | <0.04 | - | <0.04 | - |
- Cyprodinil (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.01 | - |
- Heptachlore (µg/L) | 0 | - | <0.01 | - | <0.01 | - | - | - | <0.005 | - | <0.005 | - |
- Dieldrine (µg/L), Aldrine (µg/L) | 0 | - | <0.01 | - | <0.01 | - | - | - | <0.01 | - | <0.01 | - |
- Heptachlore époxyde endo (µg/L) | 0 | - | - | - | - | - | - | - | <0.01 | - | <0.01 | - |
- Heptachlo epoxyde exo cis (µg/L) | 0 | - | - | - | - | - | - | - | <0.005 | - | <0.005 | - |
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