Science & Technology
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Estimating Taxon-Environment Relationships: Placing Taxa into Tolerance Categories
Describes approach for placing species into categories based on species-environment relationships
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Estimating Taxon-Environment Relationships: Assessing Model Fit
This page describes several approaches for assessing model fit for species-environment models.
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Basic Principles & Issues
More information about methods to control for confounding variables
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R Script: Compute Area Under ROC Curve
How to compute the area under the ROC curve in data analysis.
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Basic Analyses
Overview of linear regression analysis and questions to consider when using this type of data analysis.
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CADStat Installation Instructions
CADStat is a statistical program designed to assist risk assessors with data analysis.
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Field Measurement of Oxidation-Reduction Potential
Field branches quality systems and technical procedures
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Press Release
The U.S. Environmental Protection Agency Office of Inspector General today issued a report identifying that the EPA had limited success in getting states to include climate adaptation or related resilience efforts in their clean water state revolving fund
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Federal Guidance Report No. 13: CD Supplement
Order a CD from EPA which contains PDFs and other supporting materials related to Federal Guidance Report No. 13, "Cancer Risk Coefficients for Environmental Exposure to Radionuclides."
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Data & Data Products: Envirofacts – Toxics Release Inventory (TRI) Explorer Widget
Information about and embed code for EPA's Envirofacts – Toxics Release Inventory (TRI) Explorer Widget
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Data & Data Products: Envirofacts – Toxics Release Inventory (TRI) Form R Widget
Information about and embed code for EPA's Envirofacts – Toxics Release Inventory (TRI) Form R Widget
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Data & Data Products: WaterSense Widgets
Information and code for the WaterSense Widgets
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Data & Data Products: Safer Choice Label Widget
Information and code for the Safer Choice Label Widget
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Data & Data Products: Greenhouse Gas Equivalencies Calculator Widget
Information about the Greenhouse Gas Equivalencies Calculator Widget
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Data & Data Products: Envirofacts – UV Index Widget
Information about the EPA's Envirofacts – UV Index Widget
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Data & Data Products: Envirofacts – Toxics Release Inventory (TRI) Widget
Information about and embed code for EPA's Envirofacts – Toxics Release Inventory (TRI) Widget
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Data & Data Products: Envirofacts – Toxic Substances Control Act (TSCA) Widget
Information about and embed code for EPA's Envirofacts – Toxic Substances Control Act (TSCA) Widget
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Data & Data Products: Envirofacts – Tribe Search
Information about and embed code for EPA's Envirofacts - Tribe Search Widget
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Data & Data Products: Envirofacts – Zip Search
Information about and embed code for EPA's Envirofacts Zip Code Search
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Data & Data Products: FedFacts Widget
Information about and embed code for EPA's FedFacts Widget