OECD 207: Earthworm, acute toxicity tests
Earthworm acute toxicity tests assess the effect of a substance on the mortality and body weight of adult earthworms (Eisenia fetida or E. andrei). Adult worms are exposed to a standardized artificial soil which has been treated by spraying or mixing, depending on the usual application method for the substance. At 14 days the surviving adults are weighed, and reduction in body weight is reported as EC50. Mortality is reported as LC50/LR50 or NOER, at 7 and 14 days.
This is a standard invertebrates study utilizing our extensive experience with performing terrestrial ecotoxicology studies according to international test guidelines.