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Ecotoxicological information

Toxicity to soil microorganisms

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Key value for chemical safety assessment

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In accordance with Regulation (EC) No. 1907/2006, Annex X, section 9.4, column 2, further studies on terrestrial organisms do not have to be conducted since the chemical safety assessment indicates that there is no need. The terrestrial toxicity of the oil shale thermal processing residue has been tested with the earth-worm Eisenia fetida. No effects for mortality, growth, reproduction and feeding activity were observed during the 56-day exposure period at the test concentration of 1,000 mg/kg soil dw, the highest concentration tested.

Based on the available data, no toxicity of oil shale thermal processing residue to terrestrial organisms is expected. Additionally the test substance is not classified as toxic or harmful, the substance is not considered to cause toxic effects.

Moreover, the substance shows no inhibition to aquatic microorganisms.

 

Based on this information, toxicity to soil microorganisms is not expected to be of concern, and consequently, no further testing is required.