Registration Dossier

Ecotoxicological information

Ecotoxicological Summary

Currently viewing:

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.001 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.001 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
1.65 mg/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:
3.7 mg/kg soil dw
Assessment factor:
10
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Short-term aquatic toxicity data are available for three trophic levels (fish, invertebrates and algae). The short-term fish studies show LC/EC50 values greater than the Water Accommodated Fraction (WAF) or the highest nominal concentrations. Therefore, the substance does not need to be classified for acute aquatic hazard in accordance with CLP Regulation No. 1272/2008.

 

Long-term toxicity data are available for three trophic levels (fish, invertebrates and algae). For the long-term data, the NOEC values were greater than the Water Accommodated Fraction (WAF) or the highest nominal concentrations. For aquatic invertebrates, an additional 21-day chronic study with Daphnia exposed to LAB, the most water soluble component of HAB, still resulted in an EC50 of 0.012 mg/L and a NOEC of 0.0075 mg/L. While this latter value exceeds the criteria, it was accomplished only by testing the most water soluble component of HAB and then further artificially enhancing solubility through use of acetone as a solvent. It was therefore only used for the derivation of the PNECs and not for the environmental classification. Therefore, the substance does not need to be classified for chronic aquatic hazard in accordance with CLP Regulation No. 1272/2008.