Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.014 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.001 mg/L
Assessment factor:
500
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
10 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.125 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.013 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.017 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Short-term E/LC50 values are available for algae (growth rate 72hEC50 = 54.7 mg/L), daphnia (48hEC50 = 3 mg/L) and fish (96hLC50 = 28.5 mg/L). The lowest EC50 is obtained with daphnia showing that the substance is toxic to the aquatic organisms. But since it is readily biodegradable and has a low potential of bioaccumulation, the substance is not classified based on the acute toxicity data.

Chronic toxicity data are available for daphnia and algae showing a 21d NOEC of 0.68 mg/L and a 72hNOEC of 2.96 mg/L respectively. Based on this information, the substance is considered as harmful to aquatic life with long lasting effects.