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Environmental fate & pathways

Phototransformation in air

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Description of key information

Atmospheric half-life < 1 day.

Key value for chemical safety assessment

Additional information

Two publications, scored of reliability 2 (Kelly et al., 1994) and 4 (CEPA, 2008) according to Klimisch, give consistent results in terms of photodegradation. Both report atmospheric half-life inferior to 1 day; revealing that catechol is rapidly transformed or removed in air through reaction with OH radicals.