Science & Technology
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SSD Plots
Species sensitivity distributions, cadmium, LC50, ECOTOX, arthropod
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PECBO Appendix Introduction: Theory
Provides underlying theory for species-environment relationships
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Data Analysis Topics (A-Z)
This is an a to z list of data analysis topics which are part of volume 4: data analysis
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R Script: Non-Parametric Regression
How to Fit Non-Parametric Curves to Observations
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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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News Release: EPA Office of Inspector General Identifies that the EPA Needs to Determine Whether Seresto Pet Collars Pose an Unreasonable Risk
EPA Office of Inspector General Identifies that the EPA Needs to Determine Whether Seresto Pet Collars Pose an Unreasonable Risk
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The EPA OIG Identifies Multiple Factors Contributed to the Delay in Constructing CSO Tanks at the Gowanus Canal Superfund Site in NYC
The EPA OIG Identifies Multiple Factors Contributed to the Delay in Constructing CSO Tanks at the Gowanus Canal Superfund Site in NYC
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Field Measurement of Oxidation-Reduction Potential
Field branches quality systems and technical procedures
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Managing the Quality of Environmental Data at EPA Region 4
Information from Region 4 about managing the quality of environmental information
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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