übertool: web applications for ecological risk assessment (beta version)
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Cloud-based environmental models used by the USEPA for evaluating pesticide risks to ecosystems under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and the Endangered Species Act (ESA).
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The KABAM model is used to estimate the potential bioaccumulation of hydrophobic organic pesticides in freshwater foodwebs and to estimate the risks to birds and mammals consuming the prey items from these freshwater food webs. The first part of the model calculate the parameters necessary to determine the pesticide concentration in tissues, bioaccumulation factors, bioconcentration factors, biomagnification factors and biota sediment accumulation factors for each trophic level in the aquatic food web. The KABAM model includes a trophic level representation for phytoplankton, zooplankton, benthic invertebrates, filter feeders, small fish, medium fish and large fish. The second part of the model estimates exposure and toxicological effects of a pesticide into risk estimates for mammals and birds consumging contaminated prey. Equations for the bioaccumulation of the food web are below:







Parameters calculated that contribute to trophic level pesticide concentration in tissues:



 

 

 

 

 

 

 

 

 



These equations are used to determine the dose-based response of mammals and birds feeding on the trophic levels