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Ecotoxicological information

Ecotoxicological Summary

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
9.2 µg/L
Assessment factor:
1 000
PNEC freshwater (intermittent releases):
92 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.92 µg/L
Assessment factor:
10 000

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
54 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:
103 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

The following key information was used for the environmental classification:

Lowest acute E(L)C50 value 9.2 mg/L to Ceriodaphnia dubia (Goodrich, 1994)

Lowest chronic ErC10 value 45.2 mg/L to algae ( DR. U. NOACK-LABORATORIEN, 2015)

Not ready biodegradable in an OECD 301B test (Soeter, 2015)

Acute:

As the lowest EC50 value (to Ceriodaphnia dubia) was >1 mg/L, the substance is not classified.

Chronic:

One chronic ErC10 value is available (in algae). Therefore the chronic classification needs to be determined based on acute data and based on chronic data and the most stringent outcome should be leading:

Based on the chronic ErC10 in algae > 1 mg/L, no chronic classification is necessary.

However, based on the EC50 to Ceriodaphnia dubia which is > 1 and ≤10 mg/L and the fact that the substance is not ready biodegradable, the substance should be classified as Chronic 2, H411 Toxic to aquatic life with long lasting effects.