Science & Technology
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December 7, 2011 LT2 Public Meeting
Describes meeting materials from December 7, 2011 public meeting about LT2 Rule Review
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Exposure Analysis Modeling System (EXAMS): User Manual and System Documentation
Revision G User manual for EXAMS, software for formulating aquatic ecosystem models & evaluating fate, transport, & exposure concentrations of synthetic organic chemicals.
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EXPRESS (EXAMS - PRZM Exposure Simulation Shell)
EXPRESS (EXAMS - PRZM Exposure Simulation Shell) software model-designed to facilitate a rapid and consistent assessment of aquatic pesticide exposure on a variety of crops.
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User Manual for EXPRESS, the EXAMS-PRZM Exposure Simulation Shell
User Guide for EXPRESS 1.03.02. software model-designed to facilitate a rapid and consistent assessment of aquatic pesticide exposure on a variety of crops.
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Meet EPA Ecologist Paul Mayer, Ph.D.
EPA ecologist Paul Mayer, Ph.D. works in EPA's Groundwater and Ecosystem Restoration division where he studies riparian zones (the area along rivers and streams where the habitats are influenced by both the land and water) and stream restoration
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Water Quality Framework
A framework for streamlining water quality assessment and reporting by integrating existing systems.
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Meet EPA Biologist John Cowden, Ph.D.
John Cowden works in the Office of Research and Development’s Center for Computational Toxicology and Exposure. He works with different EPA scientists, lab directors, and research program directors to coordinate research projects.
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Webinar: Innovative and Emerging Landfill Gas Energy Project Types
LMOP webinar on September 14, 2021 about the use of landfill gas for producing hydrogen, methanol and ethanol.
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Modeling Products to Assess Exposures
A complete list of software models, modeling tools, data sets, and documents distributed by the EPA Center for Exposure Assessment Modeling (CEAM).
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Meet EPA Scientist Beth Owens, Ph.D.
As co-director of one of EPA’s Superfund Technical Support Centers that is focused on human health risk, EPA researcher Beth Owens provides technical support to Superfund sites.
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Risk Evaluation for Vinyl Chloride
EPA designated vinyl chloride as a high priority chemical in December 2023 and the chemical is currently undergoing risk evaluation.
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Risk Evaluation for C.I. Pigment Violet 29
Documents for PV-29
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Final Risk Evaluation for C.I. Pigment Violet 29
PF for PV29
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Instructions for ECA Marine Fuel Sulfur Test Method Form
These instructions are for use by those parties that need to qualify a facility test method for measuring the concentration of sulfur in ECA marine fuel.
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Is MOVES the best tool for my work?
See More Frequent Questions about MOVES and Related Models . EPA’s MOtor Vehicle Emission Simulator (MOVES) is a state-of-the-science emission modeling system that estimates emissions for U.S. mobile sources at the national, county, and project level for criteria air pollutants, greenhouse gases, and air toxics. States other than California must…
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Can I Create a Portable Version of MOVES to Use on Multiple Computers?
See More Frequent Questions about MOVES and Related Models . Yes, you can create a portable version of MOVES. This may be helpful if you need to easily shift your modeling analyses from one computer to another without copying files back and forth. If your organization’s computer policy allows it…
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How does MOVES Calculate CO2 and CO2 Equivalent Emissions?
See More Frequent Questions about MOVES and Related Models . MOVES calculates the energy it takes to operate an onroad vehicle based on energy consumption rates as explained in the technical reports Greenhouse Gas and Energy Consumption Rates for Onroad Vehicles MOVES3 (pdf) (November 2020, EPA-420-R-20-015) and Exhaust Emission Rates…
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EPA Calls for Nominations of Peer Reviewers for Draft Risk Evaluation of the Solvent 1,1-DCA
EPA is calling for nominations of scientific experts to serve as letter peer reviewers of the Draft Risk Evaluation for 1,1-Dichloroethane (1,1-DCA). Nominations are due April 11, 2024.
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South Platte Urban Waters Federal Partnership Workplan
South Platte Urban Waters Federal Partnership Workplan
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Hazardous Air Pollutant Exposure Model (HAPEM) Versions
The HAPEM model has been designed to estimate inhalation exposure for selected population groups to various air toxics.