ECOSAR computer program

This chapter is dedicated to the memory of Vince (J. Vincent) Nabholz, who died suddenly on February 23, 2008. He was a graduate of Christian Brothers University, received a PhD from the University of Georgia, and was senior biologist and ecologist with the US Environmental Protection Agency in Washington, DC, where he served for 29 years, and where he chaired their Structure-Activity Team for the last two decades. He was the principal author of USEPA s ECOSAR computer program, which also is one of the three key elements in Persistence Bioaccumulation Toxicity (PBT), one of the most frequently used (Q)SAR tools of all time. 

ECOSAR (EPA, 1994) is a computer program for estimating the ecotoxicity of industrial chemicals. 

ECOSAR Ecological Structure Activity Relationships (ECOSAR)—a computer prediction system for assessing the aquatic toxicity of industrial compounds. It was developed in 1979 by US EPA. The program is based on the SAR calculates acute and chronic toxicity for aqueous organisms (fish, aquatic invertebrates and plants) http //www.epa.gov/oppt/newchems/tools/21ecosar.htm... 

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