This EPA OPPTS 850.1035 method is an acute toxicity test designed to evaluate the impact of chemical substances and mixtures present in the aquatic environment.  The purpose of this method is to determine the acute toxicity of a material on saltwater mysids in a static, static-renewal, or flow-through system, which allows to assess the hazards […]

EPA – OPPTS 850.1035: Mysid Acute Toxicity Test

OECD 202 is an acute immobilization toxicology test that determines the concentrations of a material that immobilizes Daphnia species. Standard testing for OECD 202 is performed by exposing young daphnids to the test substance at a range of concentrations for a period of 48 hours. Immobilization is recorded at 24 hours and 48 hours and compared with […]

OECD 202: Daphnia Sp., Immobilization Test

OECD 211 is a Reproduction test that determines a material’s effect on Daphnia Magna reproduction and mobilization. OECD 211 assess the effect of chemicals on the reproductive output of Daphnia magna.  Standard testing is performed by exposing young female Daphnia (the parent animals), aged less than 24 hours at the start of the test, to the […]

OECD 211: Daphnia Magna Reproduction Test

OECD 225 assess the effects from prolonged exposure to sediment-associated chemicals on the endobenthic oligochaete Lumbriculus variegatus. OECD 225 is performed under static conditions where the test substance is used to spike the sediment.  Test organisms are exposed to the sediment-water system for 28 days.  OECD 225 determines the effects that the test substance has on the reproduction […]

OECD 225 – Lumbriculus Toxicity Test

OECD 315 is a bioaccumulation test on benthic oligochaetes (aquatic sediment-dwelling worms). The OECD 315 method measures the residues of a test substance in earthworms after exposure to the test substance mixed with soil.  The method consists of two phases- the uptake phase and elimination phase. Bioaccumulation rate is assessed after both phases are complete. OECD 315 testing is […]

OECD 315 – Bioaccumulation in Sediment-dwelling Benthic Oligochaetes