Registration Dossier

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Biodegradation in water : screening tests

The half life period of Sodium Cocoyl glutamate in water is 15 days and based on this value it can be concluded that the chemical is not persistent in water medium since the half life is less than the threshold of 60 days (to qualify the chemical as persistent). Also the diffusion percentage of Sodium Cocoyl glutamate in water medium is 18%. This coupled with the dilution of water shall result in ready biodegradabililty of the chemical.

Media

Half-Life (days)

Percent in
Each Medium

Water

15

  18%

Biodegradation in water and sediment : simulation tests

Level III Fugacity prediction model was run to predict the half-life in water and sediment for the test chemical. If released in to the environment, 18% of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of test chemical in water is estimated to be 15 days. The half-life (15 days estimated by EPI suite) indicates that the chemical is not persistent in water and the exposure risk to aquatic animals is moderate to low whereas the half-life period of test chemical in sediment is estimated to be 140 days. However, as the percentage release of test chemical into the sediment is less than 10% (i.e, reported as 9%), indicates that test chemical is not persistent in sediment.

 

Biodegradation in soil

The PBT Profiler has estimated that Sodium Cocoyl glutamate is expected to be found predominantly in soil and its persistence estimate is based on its availability in this medium. Its half-life in soil, 30 days. This does not exceed the threshold of 180 days as mentioned in the Annex XIII of the REACH regulation. Therefore, Sodium Cocoyl glutamate is estimated to be non persistent in the soil environment.

Media

Half-Life
(days)

Percent in
Each Medium

Soil

30

  73%

Additional information

Biodegradation in water : screening tests

The half life period of Sodium Cocoyl glutamate in water is 15 days and based on this value it can be concluded that the chemical is not persistent in water medium since the half life is less than the threshold of 60 days (to qualify the chemical as persistent). Also the diffusion percentage of Sodium Cocoyl glutamate in water medium is 18%. This coupled with the dilution of water shall result in ready biodegradabililty of the chemical.

Media

Half-Life (days)

Percent in
Each Medium

Water

15

  18%

Biodegradation in water and sediment : simulation tests

Level III Fugacity prediction model was run to predict the half-life in water and sediment for the test chemical. If released in to the environment, 18% of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of test chemical in water is estimated to be 15 days. The half-life (15 days estimated by EPI suite) indicates that the chemical is not persistent in water and the exposure risk to aquatic animals is moderate to low whereas the half-life period of test chemical in sediment is estimated to be 140 days. However, as the percentage release of test chemical into the sediment is less than 10% (i.e, reported as 9%), indicates that test chemical is not persistent in sediment.

 

Biodegradation in soil

The PBT Profiler has estimated that Sodium Cocoyl glutamate is expected to be found predominantly in soil and its persistence estimate is based on its availability in this medium. Its half-life in soil, 30 days. This does not exceed the threshold of 180 days as mentioned in the Annex XIII of the REACH regulation. Therefore, Sodium Cocoyl glutamate is estimated to be non persistent in the soil environment.

Media

Half-Life
(days)

Percent in
Each Medium

Soil

30

  73%