Learn the Issues
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Managing Stressors
This webpage covers information on stressors that drive coastal wetland loss and details strategies and tools for managing those stressors.
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EPA’s Role in Protecting the San Francisco Bay Delta Watershed
A description of EPA's oversight role in California, and some review and approval of California’s water quality programs and policies.
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Feather and Sacramento Rivers Watersheds
Summary of efforts to restore the impaired watersheds of the Sacramento and Feather rivers.
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Community Successes
Stories of SF Bay delta watershed individuals and communities who are working to improve the watershed.
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San Francisco Bay Delta Action Plan: Strengthen Estuarine Water Quality Standards
One of EPA's highest priorities in the San Francisco Bay Delta Estuary Watershed is ensuring water quality standards protect aquatic life beneficial uses.
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San Francisco Bay Delta Action Plan: Accelerate Water Quality Improvement
EPA is committed to accelerating water quality improvement and minimizing negative impacts to aquatic life from contaminants and other stressors in the Bay Delta Estuary by working with California Water Boards to strengthen water quality improvement plans.
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About the San Francisco Bay Delta Watershed
The San Francisco Bay Delta Watershed consists of several major waterways, including the Sacramento and San Joaquin Rivers and their tributaries
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Eastern Abandoned Uranium Mine Region
Information about the progress of EPA's cleanup in The Eastern AUM Region, which includes 101 mines roughly in the area between Gallup and the eastern edge of the Navajo Nation.
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Course Outline and Key Points for Particle Pollution
Course Outline/Key Points
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Particle Pollution and Cardiovascular Effects
Health Effects of PM in Patients with Cardiovascular Disease
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Process for Developing Improved Cordwood Test Methods for Wood Heaters
Process for Developing Improved Cordwood Test Methods for Wood Heaters document
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What You Can Do about Climate Change
Home page linking to pages with tips for fighting climate change at home, at the office, on the road and at school.
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What is a HEPA filter?
HEPA is a type of pleated mechanical air filter that is common in portable air cleaners, also known as air purifiers. It is an acronym for " high efficiency particulate air" filter, as officially defined by the U.S. Department of Energy. This type of air filter can theoretically remove at…
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Soak Up the Rain: Rain Barrels
Find resources and learn how to install, use and maintain a rain barrel to collect rain water when it rains and help to reduce stormwater runoff from your property.
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Exploration of Aging and Toxic Response Issues: Final Report
Most physiological functions undergo deterioration with increasing adult age and this deterioration undoubtedly increases vulnerability to harmful environmental agents.
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Human Health Risk Assessment
This site will be linked off of the risk Microsite and will be where the 4 steps to HHRA, the guidelines to HHRA, links to models, tools, databases and HHRA examples.
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Conducting a Human Health Risk Assessment
This page provides the step-by-step instructions to how the EPA conducts a human health risk assessment with additional links to models, tools, databases and related products.
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Papers Addressing Scientific Issues in the Risk Assessment of Metals
To inform the consideration of metals properties, and to engage the external scientific community, the Agency commissioned external experts to lead the development of a series of issue papers.
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Methods for Identifying a Default Cross-Species Scaling Factor (Rhomsberg, 2004)
Provides a rationale for selecting default cross-species extrapolation factors with which to scale oral doses across species for non-carcinogenic endpoints.
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Antimicrobial Exposure Assessment Task Force II (AEATF II) Volume 5: Governing Document for a Multi-Year Antimicrobial Chemical Exposure Monitoring Program (interim draft document with changes)
This document describes the overall scope of the AEATF II program, demonstrates the need for additional human exposure monitoring data and explains the proposed methodology for the exposure monitoring studies proposed for conduct by the AEATF II.