Registration Dossier

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Substance is a gas and is extremely unlikely to reside in the aquatic or terrestrial compartment. Deriving a PNEC for a gas is unreasonable and technically of little use for risk assessment as the substance will not be present in the aquatic or terrestrial environment.

Conclusion on classification

The lowest available acute data was a calculated 96 h EC50 for green algae of 30.3 mg/l, supported by experimental values of 72 h EC50 40.5 mg/L (meas. (arithm. mean)) based on biomass and a 72 h EC50 72.2 mg/l (meas. (arithm. mean)) based on growth rate. 

A measured log Kow of 1.13 for ethylene indicates the potential for bioaccumulation to be low. Measured data are not available to demonstrate that propene is readily biodegradable, but QSAR estimates indicate that biodegradation is expected to be rapid. In addition, ethylene is expected to partition to the air from water, further reducing the potential for exposure.

Taken together with the acute toxicity results, these results do not support any classification for acute or chronic hazard to the environment under the DSD or CLP Regulations.