(1R)-1-[(4R,4aR,8aS)-2,6-bis(3,4-dimethylphenyl)tetrahydro[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

no data: aquatic toxicity unlikely

Marine water

Hazard assessment conclusion:

no data: aquatic toxicity unlikely

STP

Hazard assessment conclusion:

PNEC STP

PNEC value:

100 mg/L

Assessment factor:

10

Extrapolation method:

assessment factor

Sediment (freshwater)

Hazard assessment conclusion:

insufficient hazard data available (further information necessary)

Sediment (marine water)

Hazard assessment conclusion:

insufficient hazard data available (further information necessary)

Hazard for air

Air

Hazard assessment conclusion:

no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:

insufficient hazard data available (further information necessary)

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:

no potential for bioaccumulation

Additional information

The approach given on the ECHA Guidance R.10 could not be followed, as the test substance was insoluble in water, and the test results consistently demonstrated that no acute toxic effects was observed at the highest achievable test concentrations, which varied from 0.05 to 0.1 mg/L.

The test concentration in the STP test was most probably a nominal concentration (details were not available).

Conclusion on classification

The lowest determined NOEC on algae >= 0.08 mg/L, the solubility limit of the substance, indicate that the substance possesses no acute toxicity at levels up to water solubility.