Registration Dossier

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.82 µg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
11.5 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
82 ng/L
Assessment factor:
500
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
1.15 µg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
1.55 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:
2.62 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

According to the ecotoxicological results and the biodegradation result, the test item is classified as aquatic acute toxicity cat.2 H401 and aquatic chronic toxicity cat.1. H410.

 

Short-term E/LC50 values are available for algae (growth rate 72h-EC50 = 1.15 mg/L), daphnia (48h-EC50 = 18.8 mg/L). The lowest EC50 is obtained in the Algal test showing that the substance is toxic to the aquatic organisms.

 

Additionally, the reaction mass is not readily biodegradable and due to the log Kow <3 there is no tendency to bioaccumulate. Chronic toxicity data are only available for chronic daphnia showing a 21d-ErC10 = 0.041 mg/L

Based on this information, this substance is very toxic to aquatic life with long lasting effects.

 

This results in a classification of:

Aquatic acute 2, H401

Aquatic chronic 1, H410

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