| Moyennes annuelles par paramètre | Valeur seuil | Année(s) | ||||||||||
| 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2016-2020 | ||
Nitrates (mg(NO3)/L) | 50 | 23 | - | - | - | - | 24.6 | - | - | - | - | - |
Somme des pesticides totaux (µg/L) | 0.5 | 0.119 | - | - | - | 0.146 | - | - | - | - | 0.204 | - |
- Atrazine déséthyl (µg/L) | 0.9 | 0.05 | - | - | - | 0.045 | 0.047 | 0.066 | 0.052 | 0.0235 | 0.023 | - |
- 2-hydroxy atrazine (µg/L) | 0.9 | - | - | - | - | - | 0.02 | 0.0167 | 0.015 | <0.02 | 0.022 | - |
- Atrazine (µg/L) | 0.9 | 0.02 | - | - | - | <0.02 | 0.0103 | <0.02 | <0.02 | 0.0068 | <0.005 | - |
- Nicosulfuron (µg/L) | 0.9 | 0.04 | - | - | - | <0.02 | 0.007 | - | - | - | <0.005 | - |
- Atrazine déisopropyl déséthyl (µg/L) | 0.9 | - | - | - | - | - | 0.28 | - | - | - | 0.079 | - |
- Simazine (µg/L) | 0.9 | 0.002 | - | - | - | <0.02 | <0.02 | <0.02 | <0.02 | <0.005 | <0.005 | - |
- Atrazine déisopropyl (µg/L) | 0.9 | 0.005 | - | - | - | <0.05 | <0.05 | <0.02 | <0.02 | <0.02 | <0.02 | - |
- Bentazone (µg/L) | 0.9 | 0.002 | - | - | - | <0.03 | <0.002 | - | - | - | <0.02 | - |
- Metsulfuron méthyle (µg/L) | 0.9 | - | - | - | - | 0.064 | <0.002 | - | - | - | <0.02 | - |
- Diméthénamide (µg/L) | 0.9 | - | - | - | - | 0.11 | <0.002 | - | - | - | <0.005 | - |
- Métolachlore total (µg/L) | 0.9 | - | - | - | - | 0.049 | <0.005 | - | - | - | <0.005 | - |
- Terbuthylazine désethyl (µg/L), Terbuthylazine (µg/L) | 0.9 | <0.001 | - | - | - | <0.02 | <0.02 | <0.02 | <0.02 | <0.005 | <0.005 | - |
- Propazine (µg/L) | 0.9 | <0.001 | - | - | - | <0.02 | <0.02 | <0.02 | <0.02 | <0.02 | <0.02 | - |
- Métribuzine (µg/L), Métamitrone (µg/L), Cyanazine (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.02 | <0.02 | <0.02 | <0.005 | <0.005 | - |
- 2,6-Dichlorobenzamide (µg/L) | 0.9 | <0.005 | - | - | - | <0.05 | <0.002 | - | - | - | <0.005 | - |
- AMPA (µg/L), Glyphosate (µg/L) | 0.9 | <0.1 | - | - | - | <0.05 | <0.02 | - | - | - | <0.05 | - |
- Métalaxyl (µg/L), Sulcotrione (µg/L) | 0.9 | <0.001 | - | - | - | <0.05 | <0.002 | - | - | - | <0.02 | - |
- Tébuconazole (µg/L), Tébutame (µg/L), Linuron (µg/L) | 0.9 | <0.001 | - | - | - | <0.02 | <0.005 | - | - | - | <0.005 | - |
- Bromacil (µg/L), Flusilazole (µg/L), Alachlore (µg/L) | 0.9 | <0.005 | - | - | - | <0.02 | <0.002 | - | - | - | <0.005 | - |
- Oxadiazon (µg/L) | 0.9 | <0.02 | - | - | - | <0.02 | <0.005 | - | - | - | <0.005 | - |
- Oxadixyl (µg/L), Isoproturon (µg/L), Diuron (µg/L), Chlortoluron (µg/L) | 0.9 | <0.001 | - | - | - | <0.02 | <0.002 | - | - | - | <0.005 | - |
- Dicamba (µg/L) | 0.9 | <0.005 | - | - | - | <0.03 | <0.1 | - | - | - | <0.03 | - |
- Lénacile (µg/L) | 0.9 | <0.005 | - | - | - | <0.02 | <0.005 | - | - | - | <0.005 | - |
- 2,4-MCPA (µg/L) | 0.9 | <0.001 | - | - | - | <0.03 | <0.002 | - | - | - | <0.005 | - |
- Hexachlorocyclohexane gamma (µg/L) | 0.9 | <0.001 | - | - | - | <0.005 | <0.001 | - | - | - | <0.005 | - |
- Deltaméthrine (µg/L) | 0.9 | <0.08 | - | - | - | <0.02 | <0.02 | - | - | - | <0.005 | - |
- 2,4-D (µg/L) | 0.9 | <0.001 | - | - | - | <0.03 | <0.002 | - | - | - | <0.02 | - |
- Chlormequat (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.02 | - | - | - | <0.02 | - |
- Boscalid (µg/L), AZOXYSTROBINE (µg/L), Acétochlore (µg/L), Diflufenicanil (µg/L), Métazachlore (µg/L), Diméthomorphe (µg/L), Chloridazone (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.002 | - | - | - | <0.005 | - |
- Prosulfuron (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.002 | - | - | - | <0.005 | - |
- Mésotrione (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.01 | - | - | - | <0.02 | - |
- Anthraquinone (µg/L) | 0.9 | <0.08 | - | - | - | - | <0.01 | - | - | - | <0.005 | - |
- fosetyl-aluminium (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.1 | - | - | - | <0.02 | - |
- TEFLUTHRINE (µg/L) | 0.9 | <0.02 | - | - | - | <0.02 | - | - | - | - | <0.005 | - |
- Thiafluamide (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.02 | - | - | - | <0.005 | - |
- Difénoconazole (µg/L), Ethofumésate (µg/L), Diméthoate (µg/L), Cymoxanil (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.005 | - | - | - | <0.005 | - |
- Oxamyl (µg/L) | 0.9 | <0.005 | - | - | - | <0.02 | - | - | - | - | <0.02 | - |
- Fluroxypyr (µg/L) | 0.9 | - | - | - | - | <0.03 | <0.1 | - | - | - | <0.02 | - |
- Fenpropidine (µg/L) | 0.9 | <0.001 | - | - | - | <0.02 | - | - | - | - | <0.01 | - |
- Aclonifène (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.015 | - | - | - | <0.005 | - |
- Dichlobenil (µg/L) | 0.9 | <0.02 | - | - | - | - | <0.02 | - | - | - | <0.005 | - |
- Oryzalin (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.005 | - | - | - | <0.02 | - |
- Glufosinate (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.02 | - | - | - | <0.05 | - |
- Cyprodinil (µg/L) | 0.9 | <0.01 | - | - | - | <0.02 | - | - | - | - | <0.005 | - |
- Triclopyr (µg/L) | 0.9 | - | - | - | - | <0.03 | <0.005 | - | - | - | <0.02 | - |
- Mécoprop (µg/L) | 0.9 | - | - | - | - | <0.03 | <0.002 | - | - | - | <0.005 | - |
- Hexachlorocyclohexane delta (µg/L), Hexachlorocyclohexane bêta (µg/L) | 0.9 | - | - | - | - | <0.005 | <0.001 | - | - | - | <0.005 | - |
- Hexachlorocyclohexane alpha (µg/L) | 0.9 | - | - | - | - | <0.005 | <0.005 | - | - | - | <0.005 | - |
- Folpel (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.05 | - | - | - | <0.01 | - |
- Fenpropimorphe (µg/L) | 0.9 | <0.001 | - | - | - | <0.02 | - | - | - | - | <0.005 | - |
- Dichlorprop (µg/L) | 0.9 | - | - | - | - | <0.03 | <0.002 | - | - | - | <0.02 | - |
- Cyperméthrine (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.02 | - | - | - | <0.005 | - |
- Carbofuran (µg/L) | 0.9 | <0.001 | - | - | - | <0.02 | <0.002 | - | - | - | - | - |
- Carbendazime (µg/L) | 0.9 | <0.005 | - | - | - | <0.02 | - | - | - | - | <0.005 | - |
- Aminotriazole (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.02 | - | - | - | <0.03 | - |
- Lambda-cyhalothrine (µg/L) | 0.9 | <0.04 | - | - | - | <0.02 | - | - | - | - | <0.005 | - |
- Chlorpyriphos-éthyl (µg/L) | 0.9 | - | - | - | - | <0.01 | <0.005 | - | - | - | <0.005 | - |
- Ethylenethiouree (µg/L) | 0.9 | - | - | - | - | <0.05 | - | - | - | - | <0.1 | - |
- Triticonazole (µg/L) | 0.9 | - | - | - | - | - | <0.002 | - | - | - | <0.02 | - |
- Chlorure de choline (µg/L) | 0.9 | - | - | - | - | <0.05 | - | - | - | - | <0.46 | - |
- Dichlormide (µg/L) | 0.9 | - | - | - | - | - | <0.03 | - | - | - | <0.01 | - |
- Florasulam (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.002 | - | - | - | - | - |
- Spiroxamine (µg/L), Isoxaflutole (µg/L), Bifénox (µg/L) | 0.9 | - | - | - | - | <0.05 | - | - | - | - | <0.005 | - |
- Pyraclostrobine (µg/L), Flumioxazine (µg/L), Fludioxonil (µg/L), Metconazole (µg/L), Epoxiconazole (µg/L), Cyproconazole (µg/L), Napropamide (µg/L), Propyzamide (µg/L), Pendiméthaline (µg/L), Prosulfocarbe (µg/L) | 0.9 | - | - | - | - | <0.02 | - | - | - | - | <0.005 | - |
- Dimétachlore (µg/L), Thifensulfuron méthyl (µg/L), Ethidimuron (µg/L) | 0.9 | - | - | - | - | - | <0.002 | - | - | - | <0.005 | - |
- Trinexapac-ethyl (µg/L), Diquat (µg/L) | 0.9 | - | - | - | - | <0.05 | - | - | - | - | <0.02 | - |
- Sébuthylazine (µg/L), Hexazinone (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.02 | - | - | - | - | - |
- Imidaclopride (µg/L), Mercaptodiméthur (µg/L) | 0.9 | - | - | - | - | - | <0.005 | - | - | - | <0.005 | - |
- Métaldéhyde (µg/L) | 0.9 | - | - | - | - | <0.03 | - | - | - | - | <0.02 | - |
- Tolylfluanide (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.05 | - | - | - | - | - |
- Piclorame (µg/L) | 0.9 | - | - | - | - | <0.05 | <0.1 | - | - | - | - | - |
- Chlorpyriphos-méthyl (µg/L) | 0.9 | - | - | - | - | - | <0.02 | - | - | - | <0.005 | - |
- Chlorothalonil (µg/L), Prochloraz (µg/L), Iprodione (µg/L) | 0.9 | - | - | - | - | <0.02 | - | - | - | - | <0.01 | - |
- Bénomyl (µg/L) | 0.9 | <0.02 | - | - | - | <0.05 | - | - | - | - | - | - |
- Trifluraline (µg/L) | 0.9 | - | - | - | - | <0.01 | <0.005 | - | - | - | - | - |
- Phenmédiphame (µg/L) | 0.9 | - | - | - | - | <0.02 | - | - | - | - | <0.02 | - |
- Méthomyl (µg/L) | 0.9 | <0.001 | - | - | - | - | <0.002 | - | - | - | - | - |
- Méthabenzthiazuron (µg/L) | 0.9 | - | - | - | - | <0.02 | <0.005 | - | - | - | - | - |
- Hexachlorobenzène (µg/L), Endosulfan alpha (µg/L) | 0.9 | - | - | - | - | <0.01 | <0.001 | - | - | - | - | - |
- Somme Heptachlore époxyde cis/trans (µg/L) | 0.9 | - | - | - | - | <0.01 | - | - | - | - | <0.005 | - |
- Captane (µg/L) | 0.9 | <0.05 | - | - | - | - | - | - | - | - | <0.01 | - |
- Bromoxynil (µg/L) | 0.9 | - | - | - | - | <0.03 | - | - | - | - | <0.005 | - |
- Thirame (µg/L) | 0.9 | - | - | - | - | - | <2 | - | - | - | <0.1 | - |
- Fenoxaprop (µg/L), Thiacloprid (µg/L), Triflusulfuron-methyl (µg/L), Fluazinam (µg/L), Trifloxystrobine (µg/L), Quinmerac (µg/L), Quinoxyfen (µg/L), Clomazone (µg/L), Amidosulfuron (µg/L), Imazaméthabenz (µg/L), Norflurazone (µg/L), Tetraconazole (µg/L), Pirimicarbe (µg/L), Pyriméthanil (µg/L), Ioxynil (µg/L), Fluvalinate-tau (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.005 | - |
- Prothioconazole (µg/L), Isothiocyanate de methyle (µg/L), Thiophanate-méthyl (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.05 | - |
- Betacyfluthrine (µg/L), Méfénoxam (µg/L), Iodosulfuron methyl (µg/L), fenoxaprop-ethyl (µg/L), Alpha-cyperméthrine (µg/L), Meptyldinocap (µg/L) | 0.9 | - | - | - | - | <0.05 | - | - | - | - | - | - |
- Imazamox (µg/L), Foramsulfuron (µg/L), Flurtamone (µg/L), Prométone (µg/L) | 0.9 | - | - | - | - | - | <0.002 | - | - | - | - | - |
- Difenacoum (µg/L), Clethodim (µg/L) | 0.9 | - | - | - | - | - | <0.02 | - | - | - | - | - |
- Fenhexamid (µg/L), Oxyfluorfène (µg/L), Imazaméthabenz-méthyl (µg/L), Pyridate (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.01 | - |
- Mesosulfuron methyle (µg/L), Sulfosulfuron (µg/L), Imazalil (µg/L) | 0.9 | - | - | - | - | - | <0.005 | - | - | - | - | - |
- Dichlorprop-P (µg/L), Mécoprop-P (µg/L) | 0.9 | - | - | - | - | <0.03 | - | - | - | - | - | - |
- Ethephon (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.1 | - |
- Fluquinconazole (µg/L) | 0.9 | - | - | - | - | - | <0.1 | - | - | - | - | - |
- Ofurace (µg/L), fénoxycarbe (µg/L), Fenbuconazole (µg/L), Methamidophos (µg/L), Phoxime (µg/L), Chlorfenvinphos (µg/L), Dichlorvos (µg/L) | 0.9 | - | - | - | - | <0.02 | - | - | - | - | - | - |
- mepiquat (µg/L), dithianon (µg/L), Terbuthylazine hydroxy (µg/L), Bromadiolone (µg/L), Clopyralide (µg/L), Propiconazole (µg/L), Diclofop-méthyl (µg/L) | 0.9 | - | - | - | - | - | - | - | - | - | <0.02 | - |
- asulame (µg/L) | 0.9 | - | - | - | - | - | <0.01 | - | - | - | - | - |
- Pentachlorobenzene (µg/L), Endosulfan (µg/L), Endrine (µg/L), Endosulfan B (µg/L), Azinphos méthyl (µg/L) | 0.9 | - | - | - | - | <0.01 | - | - | - | - | - | - |
- Paraquat (µg/L) | 0.9 | <0.1 | - | - | - | - | - | - | - | - | - | - |
- Heptachlore (µg/L) | 0 | <0.005 | - | - | - | <0.01 | <0.005 | - | - | - | <0.005 | - |
- Heptachlore époxyde endo trans (µg/L), Dieldrine (µg/L), Aldrine (µg/L) | 0 | <0.01 | - | - | - | <0.01 | - | - | - | - | <0.005 | - |
- Heptachlore époxyde exo cis (µg/L) | 0 | <0.005 | - | - | - | <0.01 | - | - | - | - | <0.005 | - |
- Somme des Hexachlorocyclohexanes (µg/L) | 0 | - | - | - | - | <0.005 | - | - | - | - | <0.005 | - |
- Propamocarb (µg/L) | 0 | - | - | - | - | - | - | - | - | - | <0.005 | - |
- Diméthachlore-OXA (µg/L) | 0 | - | - | - | - | - | - | - | - | - | <0.02 | - |
- Chloridazone méthyl desphényl (µg/L) | 0 | - | - | - | - | - | <0.02 | - | - | - | - | - |
- Epichlorohydrine (µg/L), Pentachlorophénol (µg/L) | 0 | - | - | - | - | <0.05 | - | - | - | - | - | - |
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