Science & Technology
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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.
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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.
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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.
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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.
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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.
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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.
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Meet EPA Researcher Karoline Barkjohn, Ph.D.
EPA researcher Karoline Barkjohn works on understanding and improving data from lower cost air sensors. She is working on several exciting projects, including analyzing data from air sensors across the U.S. to better understand their performance and limita
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Urbanization - Wastewater Inputs
Intro to wastewater inputs associated with urbanization, overview of combined sewer overflows, overview of how wastewater inputs can contribute to enrichment or eutrophication, overview of how wastewater inputs can affect reproduction by stream fauna.
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Urbanization - Physical Habitat
Introduction to physical habitat changes associated with urbanization, overview of how urbanization can lead to channel enlargement, summary of how road crossings can affect stream ecosystems, summary of how urbanization can alter streambed substrates.
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Urbanization - Temperature
This page covers how water temperature changes associated with urbanization, including heated surface runoff can affect stream biota and climate change.
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Flow Alteration
Introduction to the flow alteration module, when to list flow alteration as a candidate cause, ways to measure flow alteration, simple and detailed conceptual model diagrams for flow alteration, flow alteration module references and literature reviews.
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pH
This page introduces to the pH module, when to list pH as a candidate cause, ways to measure pH, simple and detailed conceptual model diagrams for pH, pH module references and literature reviews.
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Urbanization - Cited References
This page contains the references to the urbanization module as part of the CADDIS volume on sources, stressors and responses.
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Learn About Responses
This is the introductory page to the responses module, if there had been one.
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Metals - Point Source Releases
This page contains a table of point sources for metals releases to air, water and land pulled from the Toxic's Release Inventory (2002).
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Urbanization - Hydrology
This page includes hydrologic changes, baseflow changes, water withdrawals and interbasin transfers associated with urbanization, and biotic responses to hydrologic (or flow) changes associated with urbanization
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Conditional Probability Analysis: EPT Taxa Richness < 9 vs. Percent Fines for Mid-Atlantic Highland Streams
This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.
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Quantile Regression: Number of Salmonids vs. Metal Toxicity Units for Colorado Streams
This section provides examples of stressor-response associations and species sensitivity distributions for common stressors.
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Worksheet Examples
14 Worksheets based on the Little Scioto River, Ohio case study included as an example.
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Basic Principles & Issues
Basic principles for data analysis uses inferential statistics, data independence and autocorrelation methods to identify and control confounding variables.