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Ecotoxicological information

Ecotoxicological Summary

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Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
56 mg/L
Assessment factor:
100

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no exposure of soil expected

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Persistence

Studies are available which indicate that 2,3 -epoxypropanol (glycid) is readily biodegradable. It is therefore expected that it will degrade rapidly and to be completely mineralised. It is not expected to be persistent.

Potential to accumulate

QSAR-predicted and measured log 10 Kow values for 2,3 -epoxypropanol are less than 3.0. The potential for it to bioaccumulate in the tissues of organisms that inhabit aquatic or terrestrial matrices contaminated with 2,3 -epoxypropanol is therefore negligible. The risk that 2,3 -epoxypropanol (glycid) may biomagnify through successive trophic levels of aquatic or terrestrial food chains is consequently also negligible.

Environmental fate and behaviour

Studies have been to illustrate the short-term toxicity of 2,3 -epoxypropanol to fish, alga and aquatic invertebrates. The lowest endpoint from these studies (96 -hour LC50 fish) was 50.1 mg/L. As the substance is readily biodegradable, it is not expected to be toxic to the aquatic environment.

According to Regulation (EC) No. 1272/2008 and Directive 67/548/EEC, no classification is triggered based on available data.