Registration Dossier

Environmental fate & pathways

Phototransformation in air

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Description of key information

The atmospheric oxidation half-life of clioquinol was estimated using the level III multimedia model. It was estimated that the substance is not persistent in air medium as the half life period of clioquinol in air is only 1.9 days.

Key value for chemical safety assessment

Half-life in air:
1.9 d
Degradation rate constant with OH radicals:
0 cm³ molecule-1 s-1

Additional information

The atmospheric oxidation half-life of clioquinol was estimated using the level III multimedia model. It was estimated that the substance is not persistent in air medium as the half life period of clioquinol in air is only 1.9 days. This indicates that clioquinol is rapidly phototransformed in air.

OVERALL OH Rate Constant = 0.0000000000086cm3/molecule-sec.

Media

Half life

(days)

Percent in Medium

Air

1.9

0%