LC50 12 : Lethal Concentration 50%; the concentration of a material in air which on the basis of laboratory tests, is expected to cause 50% mortality in a group of test animals when administered as a single exposure
Mohamed Jeebhay, Rodney Ehrlich, Jonny Myers, Leslie London, Sophie Kisting, Gail Todd, Neil White (Major contributors), University of Cape Town, Faculty of Siences, School of Public Health and Family Medicine, Postgraduate Diploma in Occupational Health (DOH), Glossary, Modules 3: Occupational Medicine & Toxicology (Basic) (Acknowledgment to the University of Natal, Nelson R Mandela School of Medicine, Center for Occupational and Enviornmental Health), Cape Town, South Africa 2007. http://www.oerafrica.org/ftpfolder/website%20mater ials/health/OccHealth-Module3/OccHealth-Module3/to xom1/Glossary.htm, (Occupn Med and Tox - Brit) {767}