Stoff	Cypermethrin
Literaturtitel	Proposed EQS for Water Framework Directive Annex VIII substances: cypermethrin
Medium / Matrix	WASSER
Nation / Region	Großbritannien	Land	keine Angaben
Institution	Environment Agency
Wertstatus	Qualitätskriterium	Schutzgut	Aquatische Lebensgemeinschaften, Meerwasser einschließlich Brackwasser
Nutzung
Schutzniveau
Wert
Wertbezeichnung Zielwert (Ug.) Zielwert (Og.) Wertspezifikation PNEC 0,1  ng/l Zielwert (UgNorm.) Zielwert (OgNorm.) Wertspezifikation PNEC 0,0001  µg/l
Wertspezifikation/Monitoring
Bemerkung	Long-term PNEC (proposed)
Ableitungsbasis	..."The most sensitive and reliable long-term toxicity value for deriving an annual average quality standard in the combined data set is a NOEC of 0.1 ng l-1 for expression of milt by male Atlantic salmon. Since data are also available for algae and invertebrates and there are several mesocosm studies which suggest that effects on arthropod assemblages do not occur at or below 10 ng l-1, an assessment factor of 1 is recommended. PNECsaltwater_lt = 0.1 ng l-1 cypermethrin/AF (1) = 0.1 ng l-1 cypermethrin"
Ableitungsmethode	AF=1