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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Reference
Endpoint:
biodegradation in water: sediment simulation testing
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is readily biodegradable
other:

Description of key information

Expert Judgement
According to “ANNEX IX- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 100 TONNES OR MORE”, a simulation testing on ultimate degradation in surface water, the study does not need to be performed if the substance is ready biodegradable.
Propan-2-ol (Isopropyl alcohol) and Butan-1-ol (Butyl alcohol) are both reagents used in the manufacture of Reaction mass of O-isopropyl ethyl thiocarbamate and n-butanol and propan-2-ol.Therefore, the Biodegradation in water of Propan-2-ol (Isopropyl alcohol)and Butan-1-ol (Butyl alcohol) need to be considered in the assessment of Reaction mass of O-isopropyl ethyl thiocarbamate and n-butanol  and propan-2-ol .
The results suggest that Propan-2-ol (Isopropyl alcohol) and Butan-1-ol (Butyl alcohol) are readily biodegradable and therefore Reaction mass of O-isopropyl ethylthiocarbamate and n-butanol and propan-2-ol will be readily biodegradable and it is not expected to persist in the environment.
As Reaction mass of O-isopropyl ethylthiocarbamate and n-butanol and propan-2-ol is ready biodegradable a ready biodegradability study does not need to be conducted.
Therefore testing for Biodegradation in water does not need to be performed.

Key value for chemical safety assessment

Additional information

Expert Judgement

According to “ANNEX IX- STANDARD INFORMATION REQUIREMENTS FOR SUBSTANCES MANUFACTURED OR IMPORTED IN QUANTITIES OF 100 TONNES OR MORE”, a simulation testing on ultimate degradation in surface water, the study does not need to be performed if the substance is ready biodegradable.

Propan-2-ol (Isopropyl alcohol) and Butan-1-ol (Butyl alcohol) are both reagents used in the manufacture of Reaction mass of O-isopropyl ethyl thiocarbamate and n-butanol and propan-2-ol.Therefore, the Biodegradation in water of Propan-2-ol (Isopropyl alcohol)and Butan-1-ol (Butyl alcohol) need to be considered in the assessment of Reaction mass of O-isopropyl ethyl thiocarbamate and n-butanol  and propan-2-ol .

The results suggest that Propan-2-ol (Isopropyl alcohol) and Butan-1-ol (Butyl alcohol) are readily biodegradable and therefore Reaction mass of O-isopropyl ethylthiocarbamate and n-butanol and propan-2-ol will be readily biodegradable and it is not expected to persist in the environment.

As Reaction mass of O-isopropyl ethylthiocarbamate and n-butanol and propan-2-ol is ready biodegradable a ready biodegradability study does not need to be conducted.

Therefore testing for Biodegradation in water does not need to be performed.