Science & Technology

This page shows all of the pages at www.epa.gov that are tagged with Science & Technology.

  • EPA EcoBox Tools by Exposure Pathways - References

    Eco-Box is a toolbox for exposure assessors. Its purpose is to provide a compendium of exposure assessment and risk characterization tools that will present comprehensive step-by-step guidance and links to relevant exposure assessment data bases

  • Basic Information about EPA EcoBox

    This page gives basic information about the EPA-ECO-Box Tool sets as well as links to useful resources for terminolgy.

  • POTW Influent PFAS Study

    EPA planned project collect nationwide data on industrial discharges of per- and polyfluoralkyl substances (PFAS) to publicly owned treatment works (POTWs)

  • Meet EPA Researcher James McCord, Ph.D.

    EPA scientist James McCord is a chemist that does research focused on identifying and characterizing new chemical contaminants in a range of environmental and biological samples. This work is primarily done through a technique called nontargeted analysis w

  • Incremental Evaluation of CMAQv5.2

    The impact on model predicted pollutant concentrations of the major changes in the CMAQv5.2 system compared to the last are tested one at a time. Evaluation results are summarized for ozone and PM2.5 based on simulations of January and July 2011.

  • Understanding Gulf of America Hypoxia Using CMAQ

    The coupled EPIC/CMAQ modeling system simulated impacts on air and land quality of different land use changes driven by potential energy and agricultural management decisions. Linking these results to watershed models allows for analysis of hypoxia events.

  • Browse CMAQ Applications

    The CMAQ system has been used to address major environmental issues. Below are examples of how the CMAQ system provides information to help communities, states and countries determine the most effective strategies for reducing exposure to pollution.

  • Chesapeake Bay - CMAQ

    Atmospheric deposition is a significant contributor to the total nitrogen loading to Chesapeake Bay. The CMAQ modeling system provides important information on the amount of atmospheric deposition for use in Total Maximum Daily Load analyses for different

  • Estimating Watershed Acidification using CMAQ

    The Variable Infiltration Capacity (VIC) model was linked to WRF-CMAQ to provide hydrological information needed by the Model of Acidification of Groundwater In Catchment (MAGIC) to study stream water chemistry response to air quality regulations.

  • Estimating Atmospheric Deposition with CMAQ

    Atmospheric deposition can be an important contribution to the total loading of nitrogen and sulfur to ecosystems. CMAQ model estimates can be fused with measured air concentration and wet deposition to reduce bias and develop grids and maps of total depo

  • Climate Change Indicators: Marine Heat Waves

    This indicator measures trends in mountain snowpack in the western United States.

  • Design for the Environment Alternatives Assessments

    EPA's Design for the Environment conducts alternatives assessments to explore functional alternatives to priority chemicals

  • Non-Targeted Analysis Research

    Page describing Non-Targeted analysis research and how it can be used to find previously unknown chemicals in a sample.

  • Related Links

    links to ongoing research within EPA

  • Basics of Green Chemistry

    Green chemistry the design of chemical products and processes that reduce or eliminate the use or generation of hazardous substances. This page gives a basic introduction.

  • Exceptional Events Documents Particulate Matter - Nevada County, CA

    Exceptional Events Documents Ozone - San Joaquin Valley, CA

  • Example Demonstrations and EPA Responses Prepared under the 2016 Exceptional Events Rule

    This table contains examples of air agency submitted exceptional events demonstrations and responsive EPA decision documents that have been prepared and/or acted upon under the 2016 Exceptional Events Rule

  • Updated Exceptional Events Rule FAQs

    This document replaces the “Interim Exceptional Events Rule Frequently Asked Questions” document posted on May 14, 2013. This version also contains a newly inserted Question B.16. that was not included in the previously posted July 9, 2018 version.

  • Informational Public Webinar on New Exceptional Events Implementation Tools

    This page contains links to newly developed, draft exceptional events implementation tools and documents.

  • AQS User Support

    AQS User Support

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