Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.004 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
10 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.033 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:
0.065 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no data available: testing technically not feasible

Additional information

Conclusion on classification

The lowest aquatic effect concentration for the test substance is available from a 72h  algae (Skeletonema costatum) study. The NOEC and ErC50 values from this study based on mean measured test concentrations are 0.0087 and 0.45 mg/L, respectively. These values were used to determine the appropriate classification and labelling for the substance for Aquatic acute Cat 1 (very toxic to aquatic life).

The ErC50 from the 72h algae study coupled with the observed lack of ready biodegradation for the substance were used to determine the appropriate classification and labelling for the substance for Aquatic Chronic Cat 1 (very toxic to aquatic life with long lasting effects).