Title: Quantitative Structure Activity Relationship Web Page (toxicity prediction) 
Resource Type: web links 
Producers or distributor US Environmental Protection Agency (US EPA) 
Author / Producer Type: Agency, regulator or other governmental or inter-governmental body 
Web link for product information: http://www.epa.gov/nrmrl/std/cppb/qsar/index.html  
EUGRIS Keyword(s): Contaminated land-->Risk assessment-->Toxicological information
Diffuse pollution-->Contaminants-->Contaminants overview
Diffuse pollution-->Monitoring
Short description: Quantitative Structure Activity Relationships (QSARs) are mathematical models that are used to predict measures of toxicity from physical characteristics of the structure of chemicals (known as molecular descriptors). Acute toxicities (such as the concentration that causes half of a fish population to die) are one example of the toxicity measures that may be predicted from QSARs. 
Link to Organisation(s): EPA Environmental Protection Agency
Submitted By: Professor Paul Bardos WhoDoesWhat?      Last update: 09/09/2008

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