Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

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

Hazard for air

Hazard for terrestrial organisms

Soil

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

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
1.1 mg/kg food
Assessment factor:
90

Additional information

Conclusion on classification

Acute toxicity data are available for all three trophic levels. The most sensitive species are algae. Based on the geometric mean of the effect values for growth inhibition determined in five different Desmodesmus subspicatus studies, the ErC50 is 0.015 mg/L.

Chronic toxicity data are only available for algae. Based on the geometric mean of the effect values for growth inhibition determined in five different Desmodesmus subspicatus studies, the ErC10 is 0.0032 mg/L.

 

Official classification regarding environmental hazards

Aquatic compartment

In accordance with Regulation (EC) 1272/2008 Annex VI Table 3.1, the substance is not officially classified.

In accordance with Regulation (EC) 1272/2008 Annex VI Table 3.2, the substance is not officially classified.

 

 

Self-classification

 

Aquatic compartment

Following DSD/DPD, the substance is classified as dangerous for the environment (symbol 'N', R50/53) since the acute toxicity to aquatic organisms is LC/EC50 1 mg/L, the substance is not readily biodegradable and the experimentally determined BCF is > 100.

 

Following GHS, the substance is classified as hazardous to the aquatic environment into the acute category 1 (LC/EC50 1 mg/L) and into the chronic category 1 (EC10 ≤ 0.1 mg/L / EC50 1 mg/L, not readily biodegradable and the experimentally determined BCF is ≥ 500).

Based on Table 4.1.3, the lowest acute toxicity value (EC50 = 0.015 mg/L) is within the range of 0.01 to 0.1 mg/L; therefore the M-factor is 10 for acute toxicity. The lowest chronic value (EC10 = 0.0032 mg/L) is within the range of 0.001 and 0.01 mg/L; therefore the M-factor is 10 for chronic toxicity as well.

 

Atmospheric compartment

The test substance is not in Annex I 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 Ramaswamy et al. Changes in Atmospheric Constituents and in Radiative Forcing. In: Climate Change 2007: The Physical Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on climate Change.