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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

The calculated 96 hr EC50 values for representative substances within  this Category  showed a short term toxicity to aquatic algae and cyanobacteria to be in the range 7.7 - 8.6 mg/l

Key value for chemical safety assessment

Additional information

Members of this category are gases at standard temperature and pressure, therefore conducting an aquatic ecotoxicity test is technically difficult and based on exposure estimates the test may not be relevant. In addition, it is difficult to assess the toxicity of UVCB streams using standard test methods. Instead, it is more appropriate to consider the toxicity of representative components of these streams.

Therefore, the use of a QSAR to predict the ecotoxicity of representative components of these streams is an appropriate technique to use as part of a weight of evidence approach. The use of ECOSAR is appropriate for this Category as these streams falls within the applicability domain of the model.