Data and Tools
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ORISE Method AP1: Gross Alpha and Beta for Various Matrices
This method describes procedures using gross alpha and gross beta proportional counting on soil, sediment and vegetation samples.
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EML HASL-300 Method Po-02-RC: Polonium in Water, Vegetation, Soil, and Air Filters
This method uses alpha spectrometry for determination of polonium in water, vegetation, soil/sediment and air filter samples.
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EML HASL-300 Method Pu-12-RC: Plutonium and/or Americium in Soil or Sediments
This method uses microprecipitation and alpha spectrometry for analysis of americium, californium or curium in small soil or sediment samples.
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DOE SRS Actinides and Sr-89/90 in Soil Samples
This method uses alpha spectrometry and beta counting to determine strontium-89/90 in soil and sediment.
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EML HASL-300 Method Tc-02-RC: Technetium-99 in Water – TEVA® Resin
This method uses liquid scintillation counting for qualitative and confirmatory analysis of technetium in water samples.
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EML HASL-300 Method Ga-01-R: Gamma Radioassay
Procedures are described for measurement of gamma photons emitted by radionuclides using gamma spectrometry.
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EML HASL-300 Method Sr-03-RC: Strontium-90 in Environmental Samples
This method uses low-background gas proportional beta counting for analysis of strontium in environmental samples.
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Current EPA-Approved Regulations in the Oklahoma SIP
Current EPA-Approved Regulations in the Oklahoma SIP
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IRIS Glossary
This page is designed for sites who want to extract the IRIS database.
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Exceptional Events Design Value Tool
Exceptional Events Design Value Tool
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Ozone Watch
Ozone Watch
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Markov Chain Nest Productivity Model Estimating Tool Documentation
PDF versions of the User's Guide and the Technical Manual for the Markov Chain Nest Productivity Model (MCestimate).
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LakeCat Web Tool (Table View)
The table view version of the LakeCat Web App
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LakeCat Web Tool (Map View)
A page for testing StreamCat on Drupal
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StreamCat Web Tool (Map View)
A page for testing StreamCat on Drupal
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StreamCat Web Tool (Table View)
The table view version of the StreamCat Web App
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Documentation for EPA's Power Sector Modeling Platform v6 - November 2018 Reference Case
On this page you will find documentation about EPA’s Platform v6 assumptions, updates, changes, and enhancements, including the full support document as well as additional tables and attachments.
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Notice of Data Availability Relevant to the United States Hydrofluorocarbon Baselines and Mandatory Allocations
To alert stakeholders about the availability of data related to an upcoming hydrofluorocarbon (HFC) phasedown rule under the American Innovation and Manufacturing (AIM) Act of 2020.
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EML HASL-300 Method Ra-03-RC: Radium-226 in Soil, Vegetable Ash, and Ion Exchange Resin
This method uses a radon bubbler to capture radium, which is de-emanated into an ionization chamber or scintillation cell, and counted.
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ORISE Method AP5: Determination of Technetium-99
This method uses liquid scintillation counting to determine technetium-99 in soil, sediment, surface wipes, air filters and vegetation.