Science & Technology

GHGRP Suppliers of Petroleum Products

Overview and data highlights of 2023 supplier of petroleum products of greenhouse gases in EPA's Greenhouse Gas Reporting Program.

Final Second Five-Year Review Report for the Hudson River PCBs Superfund Site: Report Text & Appendices (04/11/19)

This page contains the report text and appendices for the Second Five-Year Review Report for the Hudson River PCBs Superfund Site (May 31, 2017)

N-STEPS Program

Information related to Nutrient Scientific Technical Exchange Partnership and Support.

Reference Dose (RfD): Description and Use in Health Risk Assessments

This concept paper describes EPA's principal approach to and rationale for assessing risk for health effects other than cancer and gene mutations from chronic chemical exposure.

Water Quality Standards Regulations: Wyoming

Information related to Water Quality Standards for Wyoming.

Air Modeling - Conferences and Workshops

These conferences and workshops involve air quality modeling and related topics/areas.

Air Quality Models

Air quality models use mathematical and numerical techniques to simulate the physical and chemical processes that affect air pollutants as they disperse and react in the atmosphere.

Map of Meramec Basin

This is a map of the Meramec Basin near St. Louis.

Contacts for Anacostia Watershed (Washington, DC/Maryland)

Contacts for the Anacostia Watershed in Washington, DC/Maryland area

Program Contacts for Mystic River Watershed (MA)

This page has contact information for those running the Mystic River urban waters partnership.

EPA Research Partner Support Story: Addressing 6PPD & 6PPD-quinone (6PPD-q)

Interstate Technology & Regulatory Council (ITRC) addressing 6PPD & 6PPD-quinone (6PPD-q)

EPA Research Partner Support Story: Measuring PFAS Deposition from Air to Water

Measuring PFAS deposition from air to water

EPA Research Partner Support Story: Supporting Healthy Soil and Nitrate Leaching

Collaborative research on soil health and nitrate leaching with immediate feedback to farmers

The Enhanced Air Sensor Guidebook Webinar Archive

This EPA Tools & Resources webinar showcases the Enhanced Air Sensor Guidebook.

Community Exposure for COVID-19 Webinar Archive

This webinar discussed research that sheds light on community exposure of SARS-CoV-2, including virus detection in wastewater, methods for quantifying the virus in wastewater, development of salivary antibody assays, and transmission of the virus in air.