Science & Technology
-
Digital Strategy
The Digital Government Strategy aimed at delivering better digital services to the American people. This page will be updated over the next year to track progress in implementing the strategy.
-
Overview of Science Processes in CMAQ
Overview of the science processes considered in CMAQ, including radiation, advection, turbulent dispersion, deep convection, windblown dust, photolysis, and many more.
-
Water Quality Standards Regulations: Sac and Fox Tribe of the Mississippi in Iowa (Meskwaki)
Information related to Water Quality Standards for the Sac and Fox Tribe of the Mississippi in Iowa (Meskwaki).
-
AgSTAR Vendor Directory for Manure Digester Systems
Links to the AgSTAR Vendor Directory, a valuable resource to locate leaders in anaerobic digestion. It also includes a web form for registering or updating information.
-
Health Effects of PCBs
EPA’s Integrated Risk Information System (IRIS) Program identifies and characterizes the health hazards of chemicals found in the environment via individual assessments. IRIS primary assessment on PCBs can be found here.
-
Account Setup for Engines and Vehicles Compliance Information System (EV-CIS)
Steps for setting up a user account and roles for EV-CIS, formerly the Verify system.
-
What are Water Quality Standards?
LEARN: What Are Water Quality Standards?
-
2011 Version 6.2 Technical Support Document
This TSD describes how the emission inventories were prepared for air quality modeling for the years 2011, 2017, and 2025 using the 2011, version 6.2 emissions modeling platform, which is based on the 2011 National Emissions Inventory, Version 2.
-
Water Quality Standards Regulations: Utah
Information related to Water Quality Standards for Utah.
-
Lead at Superfund Sites: Risk Assessment
Explore EPA's methodology for risk assessment of lead at Superfund sites.
-
Packing, Marking, Labeling and Shipping of Environmental and Waste Samples
Field Quality System and Technical Procedures
-
Field Quality System and Technical Procedures for Fish Field Sampling
Field Quality System and Technical Procedures
-
State and Local Transportation Resources
This web area is designed to provide resources to state and local governments and their citizens about transportation and air quality.
-
Excel RPS Tool
This page gives a brief overview about the RPS tools and where you can find them.
-
Clearinghouse for Inventories and Emissions Factors (CHIEF)
Emissions inventories, modeling, and monitoring are the basis for understanding, controlling and tracking stationary sources of air pollution. This technical site provides access to tools and data to support those efforts.
-
Ozone and Your Patients' Health
The short, evidence-based training course describes the health impacts of ozone pollution and provides tools to help care providers and patients.
-
2021 Emissions Modeling Platform Technical Support Document
This document describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA) for criteria air pollutants to represent the year of 2020.
-
Escaped Trash Risk Map
The Escaped Trash Risk Map displays a modeled estimate of litter density across the U.S. at a snapshot in time.
-
Request for Reconsideration of Information Quality Act Request for Correction Regarding "Drinking Water: Regulatory Determination on Perchlorate" (RFC 12004)
Claims that the evidence used by the EPA to support its decision on RFC 12004 was not objective within the meaning of the Information Quality Act (IQA)
-
EPA response to RFR 19002A - Greenhouse Gas Endangerment appeal: issued 06/22/2022
EPA’s response to the Request for Reconsideration (RFR 19002A) received on March 11, 2022, regarding the 2009 Endangerment Finding for Greenhouse Gases Under Section 202(a) of the Clean Air Act.