Science & Technology

Step 2. List Candidate Causes

This page includes an overview, including more details and expected output of Step 2, listing candidate causes of a causal impairment.

Step 4. Evaluate Data from Elsewhere

This page includes an overview, details and expected output from Step 4: Evaluate Data from Elsewhere.

Step 3. Evaluate Data from the Case

This page contains an overview of the details and expected output of Step 3, to evaluate data from the case at hand.

Site Map for CADDIS

This page is include as another way to help you find the pages and sections available across the 5 CADDIS volumes.

An introduction to the history of our approach to causal assessment, A chronology of causal history and philosophy, An introduction to causal history and philosophy, References for the Causal Assessment Background section of Stressor Identification

Staging a Comeback Along the St. Louis River

EPA and a host of partners have been working to restore the St. Louis River estuary and help local communities reap the full benefits of a clean, healthy environment.

Meet EPA Scientist Eric S. Hall

Eric Hall is currently developing a decision support tool (web browser) to help communities make sustainable decisions.

Meet EPA Scientist Havala Pye, Ph.D.

EPA physical scientist Dr. Havala Pye researches air quality, specifically particles from both emissions and those that form in the atmosphere by interactions of gas-phase compounds.

From Challenge & Prize Competition to Test Prototype: The Nitrogen Sensor That Could Change Residential Onsite Wastewater Treatment

The winner of the Advanced Septic System Nitrogen Sensor Challenge has developed a nitrogen sensor that could change residential onsite wastewater treatment.

EPA Researchers Enhance Community Resilience

To help state and local emergency planners think about resilience, EPA researchers developed the Environmental Resilience Tool Wizard.

Study Finds Exposure to Air Pollution Higher for People of Color Regardless of Region or Income

EPA grantees conducted modeling and analyzed EPA data from the National Emissions Inventory for more than 5,000 emission source types for fine particulate matter, or PM2.5.

Air Pollution May Contribute to Diabetes, Particularly Among African Americans, Study Finds

An EPA researcher looked at the associations between indicators of long-term exposure to ambient air pollution and prevalence and incidence of diabetes among African Americans living in the southern state of Mississippi.

Meet EPA Research Ecologist, Cathleen Wigand, Ph.D.

EPA research ecologist Dr. Cathy Wigand works on coastal resiliency, climate adaptation, and wetland restoration and frequently collaborates with local, state, and federal partners in her work. Dr. Wigand started her career with EPA over 25 years ago and h

Celebrating Women’s History Month - Part Two

Learn about some of the EPA women working to protect the environment and check out their advice for people interested in environmental careers.

Answering the Call: EnviroAtlas Team Supports Teachers and Educators during the COVID-19 Pandemic

EPA’s EnviroAtlas team has been helping educators adjust to teaching in the virtual environment.

Meet EPA Scientist Chris Weaver, Ph.D.

EPA scientist Dr. Chris Weaver’s research focuses on climate change science, especially evaluating the specific risks global change poses to air quality, water quality, human health, and ecosystems.

Measuring Air Pollution in Southern California Using Low-Cost Sensors

To assist local and state air quality managers, community groups, and others, EPA is evaluating and developing air sensor technologies and providing information on using and interpreting sensor data.

EPA Leads the Way on Lead Exposure Science and Risk Management

EPA researchers have developed a modeling approach that improves our understanding of the relationship between lead concentrations of various sources (drinking water, soil and dust, food, and air) and children’s blood-lead levels.

Engaging Historically Black Colleges and Universities through Science, Technology, Engineering and Math (STEM) Education and Community Engagement

EPA’s STEM Outreach Program in RTP began in 2004, with the aim of supporting EPA’s mission of protecting human health and the environment by increasing awareness, providing education, and inspiring the public, especially K-12 students.