Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.75 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
2.12 µg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
12.4 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:
20.4 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

SUMMARY OF AVAILABLE DATA (key values)

Acute toxicity to aquatic organisms (pelagic):

- Fish (Brachydanio rerio): 96h-LC50 = 2.12 mg active content/L (as a LC50 value expressed in solid content was not reported, the LC50 value expressed in active content was used as a worst-case for the assessment);

- Crustaceans (Daphnia magna): 48h-EC50 = 4.6 mg solid content/L;

- Algae (Skeletonema costatum): 72h-EC50 = 2.69 mg solid content/L.

Chronic toxicity to aquatic organisms (pelagic):

- Fish (Pimephales promelas): 32d-EC10 = 0.075 mg solid content/L;

- Crustaceans (Daphnia magna): 21d-NOEC = 1.39 mg solid content/L;

- Algae (Skeletonema costatum): 72h-NOEC = 0.9 mg solid content/L.

Environmental fate:

- Rapidly degradable in the environment (demonstrated to be readily biodegradable in a 28-day ready biodegradation test);

- Low bioaccumulation potential (based on log Kow < 4)

All effective concentration are expressed in solid content and are relevant for the REACh-registered substance (= active content + minor constituents + impurities).

According to the CLP hazard classification criteria, the substance EC 939-457-4 does not have to be classified for acute environmental hazard but has to be classified as Aquatic Chronic 2 (H411) - Toxic to aquatic life with long lasting effects.