Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Kieselguhr soda ash flux calcined was tested at 3 trophic levels (algae, daphnia and fish) in reliable OECD guideline studies. In each study the L(E)C50s were greater than the solubility of the substance (ie 100% v/v saturated solution). The test substance is essentially insoluble in water and consists of amorphous and crystalline silica which naturally occur in water bodies. The registered substance is not expected to be harmful to aquatic organisms. On this basis the PNECs for the aquatic compartment have not been derived.