![[logo] US EPA](https://webarchive.library.unt.edu/eot2008/20081107224350im_/http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}
Tools
The National Exposure Research Laboratory's (NERL) mission is to conduct research on the extent and nature of exposure of humans and the nation's ecosystems to environmental pollutants and other stressors. This research led to the development of software and other tools to aid in the assessment of risk to humans and ecosystems.
- ProUCL Version 3.00.02
Software for Calculating Upper Confidence Limits (UCLs) in Superfund risk assessments provided by the Las Vegas Technical Support Center for Monitoring and Site Characterization - OnSite -- Online tools for Site Assessment
The OnSite set of online tools contain calculators for commonly used formulas, unit conversions, subsurface models and scientific demos for subsurface contaminant assessment. - MPN Software Program
This downloadable program can be used to calculate Most Probable Number (MPN) values for the quantitation of microorganisms. This is a DOS program that can be run under Windows®. - Method 8261 Data Processing Software - SW-846 Vacuum Distillation Method 8261 utilizes a suite of surrogates to measure matrix effects and predict the recovery of analytes as a function of their boiling points and relative volatility. The software that provides this data processing is available for download in two versions.
- Environmental Science (Databases and Software)
Provides information on obtaining the software and databases, software abstracts and installation instructions. - Ecosystems Research
Software tools available include Hazardous Waste Identification Rule software system documentation, subsurface site assessment, hydrocarbon spill screening model, and wellhead analytic element model. - Center for Exposure Assessment Modeling (CEAM)
CEAM provides proven predictive exposure assessment techniques for aquatic, terrestrial, and multimedia pathways for organic chemicals and metals. CEAM distributes environmental simulation model and data base software for urban and rural nonpoint sources, conventional and toxic pollution of streams, lakes and estuaries, tidal hydrodynamics, geochemical equilibrium, and aquatic food chain bioaccumulation.