Data and Tools
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Cyanobacteria Assessment Network Application (CyAN app)
EPA's Cyanobacteria Assessment Network (CyAN) mobile application provides users weekly satellite data to identify the concentration, location, and time series of cyanobacterial blooms in fresh and coastal waters of the United States.
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Timeline of Particulate Matter (PM) National Ambient Air Quality Standards (NAAQS)
The table includes federal register citations for each revision to the national ambient air quality standards (NAAQS) for particulate matter (PM), and acceptable total suspended particles.
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ROM406
Rocky Mtn National Park (ROM406) CASTNET site location,
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Timeline of Nitrogen Dioxide (NO2) National Ambient Air Quality Standards (NAAQS)
See the history of limits to the level of nitrogen dioxide (NO2) in ambient air, set through the NAAQS review and rulemaking process under the Clean Air Act. This includes both primary and secondary standards.
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Timeline of Lead (Pb) National Ambient Air Quality Standards (NAAQS)
The table includes FR citations for each revision to standards, and acceptable lead levels in air (micrograms per cubic meter).
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Water Quality Standards Regulations: Ohio
Ohio Water Quality Standards approved or otherwise in effect for Clean Water Act purposes.
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Consumer Exposure Model (CEM) Version 3.2 User's Guide
The CEM user guide contains information on the equations and defaults used in the modules with the Consumer Exposure Model.
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CEM-Consumer Exposure Model Download and Install Instructions
CEM contains a combination of models and default parameters which are used to estimate inhalation, dermal, and oral exposures to consumer products and articles for a wide variety of product and article use categories.
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Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.8
the document for Risk-Screening Environmental Indicators (RSEI) Methodology Version 2.3.8, December 2019
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Risk-Screening Environmental Indicators (RSEI) Technical Appendices Version 2.3.8
Technical appendices for the Risk-Screening Environmental Indicators screening tool version 2.3.8
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The Community Multiscale Air Quality Modeling System (CMAQ) Version 5.4 Webinar Archive
This Webinar, recorded January 18th, provides an overview on the Community Multiscale Air Quality (CMAQ) Modeling System, EPA ’s premier modeling system for studying air pollution from global to local scales.
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The Final Ecosystem Goods and Services Scoping Tool Training Webinar Archive
Archive page for ecosystem good and services tool webinar
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Changes Made to the New Website for Fuels Registration, Reporting, and Compliance
Describes changes made to the website for Fuels Registration, Reporting, and Compliance as part of One EPA Web.
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Occupational Pesticide Exposure - Seed Treatment
Provides technical information on the most current data used to assess exposure and risk for occupational pesticide seed treatment.
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Summary Table of Lifecycle Greenhouse Gas Emissions for Select Pathways
This document contains Livecycle Greenhouse Gas Emissions for Select Pathways.
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Connecticut Brownfields Funding History
Allocation of Brownfields funding for Connecticut communities.
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Waste Management by Chemical and Industry
Waste Management by Chemical/Industry Sector - trend in waste management, by chemical and by industry sector from 2013 to 2022 for the 2022 Toxics Release Inventory National Analysis.
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ExpoKids: Background
ExpoKids allows for visualization of aggregate exposure estimates, produced by ExpoFIRST, across lifestages.
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StreamCat Metrics REST API
StreamCat Metrics REST API, documentation for the API that allows the return metrics from StreamCat data tables
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How's My Waterway Widget Instructions
How's My Waterway Widget Instructions