Science & Technology

Manipulation of Exposure

This page shows how to derive and evaluate evidence from studies that manipulate exposure.

Evidence of Exposure or Biological Mechanism

This page shows how to derive and evaluate evidence of exposure or biological mechanism.

Stressor-Response Relationships from the Field

This page shows how to derive and evaluate evidence of stressor-response relationships from the field.

Temporal Sequence

This page shows how to derive and evaluate evidence of a temporal sequence.

Step 1. Define the Case

This page provides an overview of Step 1, defining the case, including more detail of Step 1, examples and the expected output of Step 1, defining the case.

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.