Synonyms Environmental toxicology; Nano-ecotoxicology; Toxicity of metal and metal oxide nanoparticles on Prokaryotes (bacteria), unicellular and invertebrate Eukaryotes Glossary EC 50 The half maximal effective concentration referring to the concentration that induces a response halfway between the baseline and maximum after some specified exposure time. EXAFS Extended X-ray absorption fine structure. IC 25 The inhibition concentration 25 % is the statistical analysis used in chronic whole

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... uent toxicity tests to estimate the sublethal effects of the effluent sample. IC 25 estimates of the concentration causing 25 % reduction in growth or reproduction of test organisms. LC 50 The lethal concentration 50 % is the dose required to kill half the members of a tested population for a test duration. It is a general indicator of a substance's acute toxicity. LD 50 The median lethal dose 50 %. MIC Minimum inhibitory concentration. NOEC No observed effect concentration, also called a no observable effect level (NOEL). PEC Predicted environmental concentration. ROS Reactive oxygen species. TEM Transmission electron microscope. XANES X-ray absorption near edge structure.