Online Catalog
A collection of nonclinical studies & assays; customization is possible.

OECD 209: Activated sludge, respiration inhibition test (carbon and ammonium oxidation)

The Activated Sludge, Respiration Inhibition Test (carbon and ammonium oxidation) examines the effect of a given substance on the respiration rate of micro-organisms present in activated wastewater sludge.

Synthetic sewage mixtures are incubated at 20°C, and oxygen concentrations are measured to determine micro-organism respiration rates. This test can be used to determine the ECx and NOEC values of the test substance and support further tests for biodegradability.

This is a standard aquatic ecotoxicology study. 

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