CoachEcotoxicology studies the effects of substances on organisms in ecosystems. The predicted no-effect concentration (PNEC) is the lowest effect or no-effect concentration from tests on representative species, divided by an assessment factor that covers the uncertainty; the predicted environmental concentration (PEC) is the concentration expected from the uses and fate of the substance; the risk quotient is PEC/PNEC.
Chemistry · Glossary
What is Ecotoxicology?
Also known as: predicted no-effect concentration · predicted environmental concentration · risk quotient