LETHAL CONCENTRATION 50 (LC50)
\lˈiːθə͡l kˌɒnsəntɹˈe͡ɪʃən fˈɪfti ˌɛlsˈiː fˈɪfti], \lˈiːθəl kˌɒnsəntɹˈeɪʃən fˈɪfti ˌɛlsˈiː fˈɪfti], \l_ˈiː_θ_əl k_ˌɒ_n_s_ə_n_t_ɹ_ˈeɪ_ʃ_ə_n f_ˈɪ_f_t_i__ ˌɛ_l_s_ˈiː f_ˈɪ_f_t_i]\
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Standard measure of surrounding medium toxicity. Half of the sample population (50%) of a specific test-animal in a specified period die from exposure via inhalation or respiration. As a toxicity comparison, LC50 values have no directly correlation from one specie to the other or to humans. LC50 measurement is micrograms or milligrams of material per liter, or parts per million (ppm), of air or water. The lower the amount, the more toxic the material. Also known as median lethal concentration or population critical concentration 50. Also seen as LC50.
By Henry Campbell Black
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Nearby Words
- leten
- lethal
- lethal agent
- lethal catatonia
- lethal catatonias
- LETHAL CONCENTRATION 50 (LC50)
- lethal dose
- lethal dose 50
- lethal dose 50 (ld50)
- lethal dose 50/30
- lethal dose low (ldlo)