EVISA Contact EVISA | Sitemap | Home   
 Advanced search
The establishment of EVISA is funded by the EU through the Fifth Framework Programme (G7RT- CT- 2002- 05112).

Supporters of EVISA includes:



a concentration of a substance that produces death in 50% of a population of experimental animals after exposure for a period of time which is usually specified (e.g. '96 hour LC50'). This term is used when the substance exists in the organism's ambient environment at the specified concentration (for example, fish in water in which the substance is present at the specified concentration).


Imprint     Disclaimer

© 2003 - 2010 by European Virtual Institute for Speciation Analysis ( EVISA )