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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Using the weight of evidence approach, it is concluded that the chemical diiodohydroxyquinoline is readily bio-degradable in nature. This is supported by the following data furnished below:

According to the quantitative structure activity relationship model prediction, the substance diiodohydroxyquinoline shows 82.9 % degaradation in 28 days. Thus it can be estimated that the compound is readily biodegradable in water .

The substance diiodohydroxyquinoline is 50% biodegradable in water in 38 days (half-life). This value indicates that diiodohydroxyquinoline is readily biodegradable in water since the half life is less than the threshold criteria of >= 60 days (to qualify the chemical as persistent).

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The substance diiodohydroxyquinoline is 50% biodegradable in water in 38 days (half-life). This value indicates that diiodohydroxyquinoline is readily biodegradable in water since the half life is less than the threshold criteria of >= 60 days (to qualify the chemical as persistent).

Hence, it can be concluded that the substance diiodohydroxyquinoline is not persistent in water.