Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

Hazard assessment conclusion:
no hazard identified

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
6.5 mg/kg sediment dw

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
12.94 mg/kg soil dw

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

There are studies for acute toxicity of three trophic levels (fish, daphnia, algae) with fish and daphnia study showing no effect up to the highest test concentration which was 100 mg/L. Algae study showed effects with an ErC50 = 43 mg/L and PNEC aquatic freshwater, PNEC marine water and PNEC intermittent release were derived based on the algae study.

No hazard was identified for PNEC STP, PNEC air and PNEC secondary poisoning and, therefore, no PNEC was derived.

PNEC sediment freshwater/marine water and soil were derived by equilibrium partitioning method (using molecular weight, vapour pressure and water solubility of the substance).

Conclusion on classification

The substance shows a log Kow range 1.82 - 3.72 and a BCF of 3.16. For both endpoints there is no study available but results seem reliable in particular since the low BCF is supported by ready biodegradability of the substance (100% in 28 days, fulfilling the 10 day window). Furthermore, the substance shows a high water solubility (substance is solution with about 58% water content). The most critical toxicity with acute data was determined with algae giving an ErC50 = 43 mg/L.

In accordance with the criteria set by Regulation (EC) No 1272/2008, CLP Regulation, the substance is not classified for environmental hazards.