Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
5.2 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
4.7 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.52 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
6.2 µg/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:
9.3 µg/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

Three acute endpoints for three different trophic levels are available. The lowest ErC50 is found for algae and is 0.47 mg/L. One chronic endpoint for algae, the most sensitive species is available, The ErC10 is 0.052 mg/L. A long-term screening study with Daphnia magna showed that invertebrates are less sensitive than algae.

The substance is not readily biodegradability and has a log Kow of 3.3.

Acute classification:

The lowest acute endpoint for algae is between 0.1 and 1 mg/L and leads to Category acute 1 with a M factor of 1.

Chronic classification:

The substance is not readily biodegradable and the chronic ErC10 for algae is between 0.01 and 0.1 mg/L. This would lead to Category chronic 1 with a M factor of 1.

Because not all chronic endpoints are available, chronic classification is also based on acute data: with an ErC50 of 0.47 mg/L and the substance being not readily biodegradable, but having a log Kow < 4 the substance would also be classified Category chronic 1.

Proposal for classification:

Category acute 1, M factor 1

Category chronic 1, M factor 1