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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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biodegradation in water: sediment simulation testing
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
Justification for type of information:
Components of the substance like calcium carbonate and silicates are inorganic and are expected to have a low potential for adsorption to sediment. They do not undergo biodegradation i.e. microbial degradation to carbon dioxide and water. Calcium carbonate will be degraded in the environment by means other than biodegradation. The ions will dissociate; calcium will be assimilated by species in the water and is necessary to maintain a good chemical balance in soils, water and plants and carbonate will become part of the carbon cycle. Calcium carbonate is a commonly occurring substance in the environment. Silica /silicates are one of the most abundant materials in earth´s surface and calcium silicate is an inorganic, stable/inert compound which is not biologically transformed. A sediment simulation test for the substance is therefore scientifically not justified.

Data source

Materials and methods

Results and discussion

Transformation products:

Applicant's summary and conclusion