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:

Glossary


acid volatile sulfides (AVS)


Sulfides in sediments that liberate hydrogen sulfide on reaction with cold dilute acid (mainly FeS or MnS in sediments). AVS is used as a parameter together with SEM (simultaneously extractable metals) to predict toxicity of sediments.
AVS may be chemically available by acid extraction without being bioavailable. Thus, AVS can reduce metal toxicity by binding metals in anoxic soils or sediments, thereby rendering them unavailable to most living organisms.


Back








Imprint     Disclaimer

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