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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Description of key information

Based on the Level III Fugacity Model the half life period of 3a,4,5,6,7,7a-hexahydro-4,7-methanoinden-6-yl acetate was estimated. As per the values it was observed that in general 3a,4,5,6,7,7a-hexahydro-4,7-methanoinden-6-yl acetate persistence time is 414 hrs.The half life period of 3a,4,5,6,7,7a-hexahydro-4,7-methanoinden-6-yl acetate  in water is 360 hrs therefore it is considered that a substance will qualify as not persistent as the period does not exceed the EPA criteria . So, it can be confirmed that the substance is readily biodegradable in water medium. Whereas the half life period of 3a,4,5,6,7,7a-hexahydro-4,7-methanoinden-6-yl acetate in sediment is 3360 hrs respectively and based on these values it is indicated that the chemical is persistent in sediment medium i.e not readily biodegradable.

Key value for chemical safety assessment

Half-life in freshwater:
360 h
at the temperature of:
25 °C
Half-life in freshwater sediment:
3 360 h
at the temperature of:
25 °C

Additional information

PBT Profiler :-

Media

Half-Life (days)

Percent in
Each Medium

Water

15

  22%

Sediment

140

  0%

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