Science & Technology

Biological Assessment - Technical Assistance Documents for States, Tribes and Territories

States and Tribes may use these technical assistance documents as they develop biological criteria and biological assessment programs.

Indicators: Phytoplankton

Phytoplankton are free-floating, microscopic algae that inhabit the sunlit, upper layer of most freshwater and marine environments. They are usually responsible for the color and clarity of lakes, wetlands, rivers, streams and estuaries.

Advancing Watershed Protection Through Land Conservation

Webpage to provide resources and updates about land protection in the Healthy Watersheds Program.

Learn about Energy and its Impact on the Environment

Learn about clean energy, the impact of energy on the environment, and U.S. electricity generation. Clean energy includes renewable energy, energy efficiency and combined heat and power.

Regulatory Determination 1 for Contaminants on the First Drinking Water Contaminant Candidate List

Learn about EPA's Regulatory Determination 1 for drinking water contaminants

Healthy Watersheds Protection

Site is one of EPA's three main watershed methods/tools/data websites: healthy watersheds, recovery potential, and watershed index online, under watershed analysis Drupal resource directory.

User's Manual for the RACT/BACT/LAER Clearinghouse (RBLC) Web

The RBLC provides data on prevention and control technology determinations made primarily by State and local permitting agencies.

Homeland Security Research Fact Sheet

EPA’s Homeland Security Research supports the Agency’s role as the lead federal agency for protecting water systems and decontaminating buildings, outdoor areas and water systems

Economic and Cost Analysis for Air Pollution Regulations

This web area provides technical tools, databases and models that have been developed for cost, benefit, and economic impact analyses of EPA air pollution regulations.

Indoor AirPlus Leader Award Winners

EPA's Indoor airPLUS program recognizes market leading organizations who promote safer, healthier, and more comfortable indoor environments by participating with Indoor airPLUS and offering enhanced indoor air quality protections for their new homebuyers.

High-Throughput Toxicology

High-Throughput Toxicology (HTT) research is focused on addressing the limitations of current chemical testing methods and fulfilling EPA’s need to evaluate large numbers of chemicals for human and ecological effects.

Virtual Meeting to Clarify Draft Charge Questions for High-Throughput Screens to Determine Endocrine Disruption

Event page for the upcoming Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) Scientific Advisory Panel (SAP) meeting to discuss and possibly refine the draft charge questions on High-Throughput Screens to Determine Endocrine Disruption

Date: November 6, 2017

Air Emissions Modeling

The site documents and makes available the Agency's latest emissions inventory data formated for use in temporal, spatial, and speciation emissions modeling.

SPECIATE's VOC and PM Speciation Profiles and Their use to Prepare for Air quality Modeling (2017 EIC)

This training provides general concepts on chemical speciation, the SPECIATE database and browser, and how to use the Speciation Tool to create model ready speciation inputs for a photochemical air quality model.

Session 5 - Biomass Burning (2015 EIC)

Papers and Presentations for the 2015 Emissions Inventory Conference

Greenhouse Gas and Remote Sensing (2019 EIC)

Papers and Presentations for the Greenhouse Gas and Remote Sensing session during the 2019 International Emissions Inventory Conference..

Eastern Regional Technical Advisory Committee (ERTAC) Electricity Generating Unit (EGU) Emission Projection Tool (2015 EIC)

Class content will include examples of how the Tool maybe applied to calculate the impacts of various air pollution control regulations (for example, the Mercury and Air Toxics Rule) on future year activity as well as NOx, SO2, and CO2 emissions.