Science & Technology
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Using Data From Other Sources
This document includes a checklist for quality concerns when using data from other sources.
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R Script: Compare Taxa Names in Tolerance Value and Assessment Data
Steps on how to identify taxa found in calibration and test data.
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Using R to Estimate Environmental Limits
Script for computing environmental limits using a weighted average in R.
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Basic Analyses
Use of statistical tests to determine if an observation is outside the normal range of expected values. Details of CART, regression analysis, use of quantile regression analysis, CART in causal analysis, simplifying or pruning resulting trees.
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Estimating Taxon-Environment Relationships: Non-Parametric Regressions
This page describes the use of non-parametric regression to estimate species-environment relationships.
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Getting Started with Data Analysis
Getting started with assembling data for an ecological causal analysis includes matching biological and environmental samples in time and space, organizing data along conceptual causal pathways, data quality and quantity requirements,
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Interactive Conceptual Diagrams (ICDs) User Guide
The Causal Analysis/Diagnosis Decision Information System, or CADDIS, is a website developed to help scientists and engineers in the Regions, States, and Tribes conduct causal assessments in aquatic systems.
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CADLink
CADLink is a database of literature-based evidence - that is, evidence extracted from the scientific literature, typically peer-reviewed publications
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R Script: Chi-Square Tests for Parametric and Non-parametric Models
How to Conduct Chi-Square Tests on Parametric and Non-Parametric Models.
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International and Other Federal Government Environmental Radiation Monitoring Networks
Learn more about international, federal and state monitoring networks.
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OPPENHEIMER FORMULA. National Contingency Plan Product Bulletin
Technical product bulletin: this biological additive is a bioremediation agent in oil spill cleanups. Especially valuable in grass flats, marshes, and the open sea. Also effective in fresh water, municipal waste treatment, septic tanks and grease traps.
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OIL SPILL EATER II. National Contingency Plan Product Bulletin
Technical product bulletin: this bioremediation agent (biological enzyme additive) used in hydrocarbon cleanups can be applied by spray or eductor systems. Once it attaches to hydrocarbons, they can no longer attach to shorelines, rocks, or equipment.
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NEOS AB3000. National Contingency Plan Product Bulletin
Technical product bulletin: this hydrocarbon solvent based dispersant used in oil spill cleanups can be sprayed neat on the oil slick in atomized form. Effective with crude and residual heavy oil, and also at controlling volatile emissions.
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Aquatic Life Criteria - Lead
References and documents pertaining to Acute and Chronic Ambient Aquatic Life Water Quality Criteria for Lead. These documents include the safe levels of Lead in water that should protect the majority of species.
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Supplementary Training Materials for Aquatic Life Criteria - Copper - Additional Information
Additional Information about the supplementary training materials developed to help states, Tribes, permittees and other interested stakeholders implement the Aquatic Life Ambient Water Quality Criteria for Copper.
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WMI-2000. National Contingency Plan Product Bulletin
Technical product bulletin: this biological additive is used as a bioremediation agent in oil spill cleanups. It works in fresh or salt water, and at specified ranges of pH, temperature, oxygen, and nutrient availability (nitrogen and phosophorous).
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Aquatic Life Criteria - Copper
Background information, documents and supplementary materials related to the EPA's issuance of revised national recommended freshwater aquatic life criterion for copper (Aquatic Life Ambient Freshwater Quality Criteria—Copper 2007 Revision).
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Final Ecosystem Goods and Services (FEGS) Metrics Report
Landing page for the Final Ecosystem Goods and Services (FEGS) Scoping Tool
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Tools for Helping State and Municipal Decision-Makers Meet Air Quality, Climate, and Energy Objectives: GLIMPSE and COMET
This EPA webinar will discuss how GLIMPSE and COMET can be used to support state and municipal planning.
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EPA Research in Connecticut
EPA researchers are working hard to protect communities across the nation. Learn about some of the work EPA researchers are doing in Connecticut.