Science & Technology
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Substitutes in Refrigeration and Air Conditioning
This page lists and describes the refrigeration and air conditioning end-uses.
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Unacceptable and Acceptable Substitutes Tables
Landing page for substitute tables.
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MOU between the USGS and EPA
MOU between USGS and EPA for he Water Quality Portal
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Frequently Asked Questions About Climate Change
Answers to some frequently asked questions about climate change.
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Basics of Climate Change
The earth's climate is changing. Multiple lines of evidence show changes in our weather, oceans, ecosystems, and more. The buildup of greenhouse gases in our atmosphere and the warming of the planet are responsible for changes.
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Environmental Response Laboratory Network Programs and Tools
ERLN is focused on building capacity and capability in four primary areas: biological, chemical, radiological, and water.
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Environmental Response Laboratory Network Membership
Member laboratories must meet core requirements including quality systems, policies and procedures, sample and data management, and analytical capabilities. Benefits include training and exercise opportunities, information sharing and technical support.
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Individual Inert Ingredient Database
New Inerts Database - Temporary while InertsFinder gets fixed
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Peer Review of the Draft Risk Evaluation for Octamethylcyclotetrasiloxane (D4)
Information about the EPA's Peer Review of the risk evaluation for octamethylcyclotetrasiloxane (D4) under the Toxic Substances Control Act.
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New Chemicals Division Reference Library
This is an index of policy documents (already published and public facing on our webpage) to make it easer for our constituents to find them.
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Environmental Sampling in Henry County, Missouri
EPA Region 7 reviewed a scanned copy of a Jan. 7, 2025, report, received by EPA on Jan. 23, 2025, and provided background, water & sediment/soil sampling data & analysis, and conclusions from sampling in Montrose and Clinton, Missouri, and Montrose Lake.
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Harmful Algal Blooms Research
Research related to harmful algal blooms and cyanobacteria. Covers toxicology, ecology, epidemiology & health effects, drinking water treatment, and monitoring & remote sensing research.
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Agenda and Recordings for the 17th Annual EPA Drinking Water Workshop (Virtual)
Online agenda and session recording.
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Advanced Nutrient Monitoring
EPA is studying innovative technologies that will measure nutrient pollution in the air and water using satellites and portable and ground remote sensors as well as measurement and model data.
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Environmental Indicators in Aquatic Surveys
This page details the environmental indicators used in National Coastal Condition Surveys and some other aquatic surveys.
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Harmful Algal Blooms & Drinking Water Treatment
Covers harmful algal bloom and cyanobacteria research in relation to drinking water treatment
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Harmful Algal Blooms Mitigation and Treatment Research
Overview of EPA's research on HABs mitigation and treatment
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PFAS Analytical Methods Development and Sampling Research
Provides links and resources for PFAS analytical methods and sampling.
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Fraudcast: Social Media Scams
Podcast: Fraudcast: Social Media Scams
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NCP Product Schedule (Products Available for Use on Oil Spills)
Listing of products submitted to (though not necessarily endorsed by) EPA as per Subpart J of the National Oil and Hazardous Substances Pollution Contingency Plan.