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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Phototransformation in water

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Link to relevant study record(s)

phototransformation in water
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:

Description of key information

Self-decomposition and decomposition in contact with organic and inorganic material dissolved in the water. Ozone converts to oxygen transients and radicals and hence supports the degradation processes of water pollutants. Therefore, although it is known that UV will help convert ozone molecules, photochemical degradation processes in water are not an important fate process for ozone.

Key value for chemical safety assessment

Additional information