LC50 29 : The median lethal concentration, being a statistically derived concentration of a substance that can be expected to cause death in 50% of animals
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}