Science & Technology

Why we studied the Bristol Bay watershed

EPA conducted a scientific assessment of the Bristol Bay watershed to understand how large-scale mining could potentially affect water quality and salmon ecosystems in the Bristol Bay watershed.

RSEI Data Dictionary: Standard Industrial Classification (SIC) Data

SIC codes are no longer collected by TRI, but RSEI maintains them because some parameters (chromium speciation and stack height) are determined by SIC code.

Environmental Sampling and Analytical Methods (ESAM) Program

The EPA Environmental Sampling and Analytical Methods (ESAM) is a comprehensive program to facilitate a coordinated response to a chemical, radiochemical, biotoxin or pathogen intentional or unintentional contamination incident.

Human Dimensions of Water Quality Research

To better protect this important resource, EPA scientists are conducting research on how people use and value clean water.

SAM 2017 Appendix A: Selected Chemical Methods

This appendix lists the usability tiers assigned to chemical methods in EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM).

ASPECT Aerial Survey

Results from the ASPECT aerial radiological & photo surveys of the Navajo Nation Abandoned Uranium Mine region. These documents will help EPA's efforts to characterize the level and extent of radiation at and around abandoned uranium mines (AUM).

Screening Assessment Report and Atlas with Geospatial Data

This Navajo Nation AUM Screening Assessment Report and the accompanying Atlas with Geospatial Data documents NAUM project data collection and screening results for all known AUMs on the Navajo Nation.

QAPP: Development of Emission Estimating Methodologies for Air Emissions from Animal Feeding Operations

Report describing plan to assure quality of data analysis for development of emission estimating methodologies for air emissions from animal feeding operations

TSCA Section 403 Risk Analysis Documents

This document represents the appendices used within the TSCA Section 403 Report.

TSCA Section 403 Risk Analysis Supplement Documents

This document represents the appendix A which lists definitions of biology terminiology.

Paint Chip Sample Collection Guide: Lead Renovation, Repair and Painting Program - October 2011

This document, the Paint Chip Sample Collection Guide, provides step?by?step instruction in how to collect paint chip samples and submit them for analysis.

Air Issues in Arkansas

Air Programs and Pollution Issues in Arkansas

How Does COBRA Work?

Learn about how the Co-Benefits Risk Assessment (COBRA) model works to quantify changes in air quality, calculate change in health outcomes, and calculate monetary values.

How does COBRA work?

What is COBRA?

EPA's CO–Benefits Risk Assessment (COBRA) screening model is a free tool that helps state and local governments.

Chemicals Dashboard Help: Lists of Chemicals

CCD Help: Lists of Chemicals. This function provides access to the curated lists of chemicals maintained by the EPA. These are curated lists of chemicals grouped by topics such as regulatory status and usage (e.g. antibiotics).

Chemicals Dashboard Help: Common Navigational Tips

EPA EcoBox Tools by Effects - Aquatic

Eco-Box is a toolbox for exposure assessors. Its purpose is to provide a compendium of exposure assessment and risk characterization tools that will present comprehensive step-by-step guidance and links to relevant exposure assessment data bases

Land Research Recent Publications

scientific journals and articles related to SHC land management

EPA Regional Monitoring Networks (RMNs) for Aquatic Ecosystems

The purpose of the site is to provide the regional, state, and tribal partners with the technical information that we've developed in order to participate in the regional monitoring networks (RMNs).