Science & Technology
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SmartWay Technology
This page provides information on SmartWay technology for locomotives, trucks, and school buses.
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Verified Technologies List for Clean Diesel
This list provides information about diesel retrofit technologies that EPA has approved or conditionally approved for use in engine retrofit programs.
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SmartWay Designated Tractors and Trailers
This page provides information about SmartWay designated tractors and trailers and how to become one.
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South Florida Ecosystem Assessment: Phase I/II Everglades Stressor Interactions: Hydropatterns, Eutrophication, Habitat Alteration, and Mercury Contamination
This project used a statistical survey design to sample the Everglades ecosystem from 1993-1999 for a multi-media suite of parameters.
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QUAL2EU
The Enhanced Stream Water Quality Model is maintained through the Watershed and Water Quality Modeling Technical Support Center and is no longer available on this website.
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An Approach for Developing Site-Specific Lateral and Vertical Inclusion Zones within which Structures Should be Evaluated for Petroleum Vapor Intrusion due to Releases of Motor Fuel from Underground Storage Tanks
Review a graphical, data-driven approach to screen buildings for vulnerability to petroleum vapor intrusion.
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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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BASINS Version History
Better Assessment Science Integrating Point and Nonpoint Sources (BASINS) version history shows the new features and changes to BASINS
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PRZM Version Index
Page on versions of PRZM, a one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. PRZM3.12.3 is the most recent version.
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AQUATOX 3.1 Download Page
Contains AQUATOX system requirements and installation information. Download the zipped file. Order documentation.
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AQUATOX 3.2 Download Page
Contains AQUATOX system requirements and installation information. Download the zipped file. Order documentation.
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BASINS Framework and Features
BASINS enables users to efficiently access nationwide environmental databases and local user-specified datasets, apply assessment and planning tools, and run a variety of proven nonpoint loading and water quality models within a single GIS format.
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Children Are Not Little Adults!
They are often more likely to be at risk from environmental hazards because of unique activity patterns/behavior, physiological differences, and windows of susceptibility during early lifestages including fetal development and puberty.
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Status of EPA Research and Development on PFAS
Contains the status of various ORD activities related to PFAS research and development
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EPA 2018 International Decontamination Research and Development Conference Proceedings
This site allows users to search for presentations, view descriptions, and Q&A from EPA's International Decontamination Conference.
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Tire Crumb Questions and Answers
Questions and Answers about tire crumbs used in turf fields.
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Metadata Populated Place Locations
Populated Place Point Locations for CONUS, Alaska, and Hawaii in BASINS
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BASINS Metadata
Metadata or "data about data" describes the content, quality, condition, and other characteristics of data. Geospatial metadata are critical to data discovery and serves as the fuel for the Geospatial One-Stop data portal.
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Stakeholder Process for Natural Gas and Petroleum Systems in the 1990-2022 Inventory
This page provides information about stakeholder meetings and webinars on updates under consideration for the 1990-2022 GHG Inventory (to be released in April 2024).
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Environmental Fluid Dynamics Code (EFDC)
Page on EFDC Environmental Fluid Dynamics Code (EFDC) multifunctional surface water modeling system software information, including model abstract & model usage