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toxicity testing
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lethal concentration 50
PREFERRED TERM
lethal concentration 50
TYPE
Topic
DEFINITION
Concentración de un material en el aire que mata el 50% de los animales de prueba cuando se administra en una única exposición en un período específico (generalmente 1 hora); medida común de toxicidad aguda de vapores, polvos, atomizados en gotas finas, y gases. Sírvase tomar en cuenta que los valores de concentración letal se utilizan cuando la vía de administración es la inhalación. Los valores CL generalmente se expresan como partes de material por millones de partes de agua (ppm).
Concentration of a material in the air that kills 50% of the test animals when administered as a single exposure in a specific time period (usually 1 hour); a common measure of acute toxicity of vapors, dusts, mists and gases. Note that lethal concentration values are used when the route of administration is by inhalation. LC values are often expressed as parts of material per million parts of air (ppm). Compare "lethal dose 50".
BROADER CONCEPT
toxicity testing
RELATED CONCEPTS
lethal dose 50
ALTERNATIVE LABEL
LC-50
LC 50
LC50
lethal concentration-50
BELONGS TO GROUP
pharmacology and toxicology
IN OTHER LANGUAGES
concentración letal 50
Spanish
concentración letal media
concentración letal mediana
CL 50 (concentración letal 50)
URI
http://id.agrisemantics.org/gacs/C13254
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EXACT MATCH
http://lod.nal.usda.gov/nalt/68545
lod.nal.usda.gov