No-Observable Effect Concentration /Level (Noec/Noel : The highest concentration or amount of pesticide in the test system that causes no observable biological effect to the target organism
Health and Safety Executive (HSE), Pesticides Glossary, Merseyside, England, UK 2014. www.pesticides.gov.uk/guidance/industries/...group s/.../pesticides-glossary, (Hlth and Sfty - Brit) {720}