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The tools found on this website, which include EPA's Total Risk Integrated Methodology, will assist with the Environmental Protection Agency's efforts to evaluate the health risks and environmental effects associated with exposure to "criteria" (six common air pollutants including ozone and particles) and toxic air pollutants. For information on new files, models, etc., please click on "Recent Additions" link at top of page left of the "Search" box.

   Total Risk Integrated Methodology (TRIM)

   Multimedia Fate & Transport Modeling   

   Human Exposure Modeling

   Risk Assessment and Modeling

Fate, Exposure & Risk Models Download

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