Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.04 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.046 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.004 mg/L
Assessment factor:
500
Extrapolation method:
assessment factor

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:
0.48 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.048 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.072 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Additional information

Conclusion on classification

Short-term toxicity data are available for all three trophic levels. The most sensitive species was Daphnia magna (48-h EC50 = 4.6 mg/L). Chronic toxicity data are available for two trophic levels: Daphnia (21-d NOEC = 4.2 mg/L) and algae (72-h NOErC = 11 mg/L).

 

Official classification regarding environmental hazards:

Aquatic compartment

In accordance with Regulation (EC) No 1272/2008 Annex VI Table 3.1 or Table 3.2: officially not classified.

  

Self-classification

Aquatic compartment

Following DSD/DPD, the substance is not to be classified as dangerous for the environment. The lowest LC50/EC50 value is 4.6 mg/L, but the substance is readily biodegradable and the log Kow is lower than 3. In addition chronic toxicity is not expected since the available chronic NOECs are greater than 1 mg/L.

 

Following CLP (GHS-EU), the substance is not to be classified as acutely hazardous to the aquatic environment, since the lowest acute effect value is > 1 mg/L.

Chronic data are available for Daphnia and algae (NOEC > 1 mg/L), therefore classification is based on the available chronic (Daphnia, algae) and acute toxicity (fish; 96-h LC50 = 27 mg/L) data. The chronic data indicate that the substance is not to be classified as hazardous to the aquatic environment. The data available for chronic classification are conclusive but not sufficient for classification.

The acute effect value for fish is between 10 and 100 mg/L, but the substance is readily biodegradable and the log Kow is lower than 3. Therefore, the substance is not to be classified as chronically hazardous to the environment.

 

Atmospheric compartment

The test substance is not listed in Annex 1 of Regulation (EC) 2037/2000 on substances that deplete the ozone layer.

 

The test substance does not belong to the greenhouse gases listed in P Forster, PV Pamaswamy et al. Changes in Atmospheric Constituents and Radiative Forcing. In: Climate Change 2007: The Physical Basis. Contribution of Working Group 1 to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change.