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Long-term toxicity to fish

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Description of key information

Long term effects on fish are not expected due to the high volatility of the test substance.

Key value for chemical safety assessment

Additional information

Due to the physico-chemical properties of chloroethane (CAS 75-00-3) a long-term toxicity of the substance to fish is not expected. Chloroethane is a gaseous substance characterised by a vapour pressure of 134200 Pa at 20 °C (62330 Pa at 0 °C). Dissolved chloroethane will evaporate from the water surface as indicated by the calculated Henry's Law constant of 1124.70 Pa m³/mol (Gossett, 1987).Thus the substance is not expected to exist in the aquatic compartment over a longer period of time.Due to these characteristics, extensive elimination by evaporation in conventional STPs can be expected. Therefore only low concentrations, if any, are likely to be released into the water phase. The potentially released substance will not accumulate in natural waters but evaporate from the natural water bodies. Thus, a long-term exposure of aquatic organisms is not anticipated. The substance is furthermore characterised by a very low bioaccumulation potential.

Therefore, and for reasons of animal welfare, long-term testing is omitted.