External Resources

EEW's work draws on open datasets provided by the U.S. federal government— but our work only scratches the surface! Below we list a collection of open federal data tools and resources relevant to various aspects of environmental governance, including health and toxics; air and surface quality water, and much more, for you to delve deeper. (Descriptions below are typically drawn from the sites themselves.)

Is there a dataset that you would especially like to see us incorporate into our work? Please let us know!

Toxics Release Inventory

A resource for learning about toxic chemical releases and pollution prevention activities reported by industrial and federal facilities

Integrated Risk Information System

A human health assessment program that evaluates information on health effects that may result from exposure to environmental contaminants


An environmental justice screening and mapping tool that provides EPA and the public with a nationally consistent approach to characterizing potential areas may warrant further consideration, analysis, or outreach

ECHO Water Pollution Search

The Water Pollution Search allows users to search for DMR or TRI pollutant discharges and the results provide top-ten lists of the largest surface water discharges

Tool for Reduction and Assessment of Critical Impacts

TRACI is an environmental impact assessment tool. It provides characterization factors for Life Cycle Impact Assessment (LCIA), industrial ecology, and sustainability metrics.


The Assessment, Total Maximum Daily Load (TMDL) Tracking and Implementation System (ATTAINS) is an online system for accessing information about the conditions in the Nation's surface waters.

Acid rain emissions tracking system

The Acid Rain Program (ARP), established under Title IV-Acid Deposition Control requires major emission reductions of sulfur dioxide (SO 2) and nitrogen oxides (NO x), the primary precursors of acid rain, from the power sector


The AirData website gives you access to air quality data collected at outdoor monitors across the United States, Puerto Rico, and the U. S. Virgin Islands. The data comes primarily from the AQS (Air Quality System) database.

National Emissions Inventory

The National Emissions Inventory (NEI) is a comprehensive and detailed estimate of air emissions of criteria pollutants, criteria precursors, and hazardous air pollutants from air emissions sources.


The Envirofacts Data Warehouse contains information from select EPA Environmental program office databases and provides access about environmental activities that may affect air, water, and land anywhere in the United States.

Beaches Environmental Assessment and Coastal Health

The resources on this page help state and local officials to monitor beach health and to make decisions about when to issue an advisory or close beaches due to unsafe environmental conditions. The resources also provide information on activities and programs that affect and protect the water quality at beaches.

Watershed Assessment Tracking and Environmental Results

The Watershed Assessment, Tracking & Environmental Results System (WATERS) unites water quality information previously available only from several independent and unconnected databases.

Safe Drinking Water Information System

Reporting on Maximum Contaminant Levels (MCLs), treatment techniques, and monitoring and reporting requirements to ensure that water provided to customers is safe for human consumption.

Flood Hazard Mapping

FEMA provides flood hazard and risk data to help guide mitigation actions.

USGS National Water Quality Assessment

The National Water Quality Program (NWQP) of the Water Mission Area conducts water-quality monitoring, assessment, and research activities that assess the current quality of the Nation's freshwater resources and how it is changing over time, explain how human activities and natural factors (e.g., land use, water use and climatevariability) are affecting the quality of surface water.

USGS National Stream Quality Accounting Network

The National Stream Quality Accounting Network ( NASQAN) program of the U.S. Geological Survey provides ongoing characterization of the concentrations and flux of sediment and chemicals in the Nation's largest rivers.

USGS National Atmospheric Deposition Program

Monitoring of chemical constituents deposited from the atmosphere via rain, sleet, and snow.

Total Diet Study

The Total Diet Study (TDS) is an ongoing FDA program that monitors levels of about 800 contaminants and nutrients in the average U.S. diet.

National Water Information System

The USGS investigates the occurrence, quantity, quality, distribution, and movement of surface and underground waters.

Air Quality System

The Air Quality System (AQS) contains ambient air pollution data collected by EPA, state, local, and tribal air pollution control agencies from over thousands of monitors. AQS also contains meteorological data, descriptive information about each monitoring station (including its geographic location and its operator), and data quality assurance.


AirNow is your one-stop source for air quality data. Our recently redesigned site highlights air quality in your local area first, while still providing air quality information at state, national, and world views.


This Web site provides access to several EPA databases to provide you with information about environmental activities that may affect air, water, and land anywhere in the United States.

TRI Explorer

The Toxics Release Inventory (TRI) Explorer allows you generate reports on releases, transfers, and waste managed that can be displayed by facility, chemical, geographic area, industry (NAICS code), or reporting years. You may also generate State factsheets.


The MyEnvironment search application is designed to provide a cross-section of environmental information based on the user's location.


RCRAInfo characterizes facility status, regulated activities, and compliance histories in addition to capturing detailed data on the generation of hazardous waste from large quantity generators and on waste management practices from treatment, storage, and disposal facilities.

National Report on Human Exposure to Environmental Chemicals

The National Report on Human Exposure to Environmental Chemicals (NRHEEC) is a series of ongoing assessments of the U.S. population's exposure to environmental chemicals by measuring chemicals in a person's blood or urine.

National Environmental Health Tracking Network

The National Environmental Public Health Tracking Network (Tracking Network) brings together health data and environment data from national, state, and city sources and provides supporting information to make the data easier to understand.

Childhood Lead Poisoning Data & Surveillance Resources

CDC uses available data and generates statistics to track progress towards the elimination of childhood lead poisoning in the United States.


CompTox provides access to multiple types of data on toxic chemicals including physicochemical properties, environmental fate and transport, exposure, usage, in vivo toxicity, and in vitro bioassay.

Cleanups in My Community

CIMC enables you to map and list hazardous waste cleanup locations and grant areas, and drill down to details about those cleanups and grants and other, related information.


EnviroAtlas allows analysis of "what if?" scenarios and provides national to local scale data and analysis of the distribution of ecosystem services, benefits, stressors, and drivers of change.

National Air Toxics Assessment

NATA is a screening tool that estimates cancer and noncancer risks based on chronic inhalation exposure to outdoor sources of air toxics


NEPAssist is a tool that facilitates the environmental review process and project planning in relation to environmental considerations

Risk-Screening Environmental Indicators

The RSEI model is a computer-based screening tool developed by EPA that analyzes factors that may result in chronic human health risks. These factors include the amount of toxic chemical releases, the degree of toxicity and the size of the exposed population.

Environmental Compliance History Online

ECHO, Enforcement and Compliance History Online, provides compliance and enforcement information for approximately 800,000 EPA-regulated facilities nationwide. ECHO includes permit, inspection, violation, enforcement action, and penalty information about facilities regulated under the Clean Air Act (CAA) Stationary Source Program, Clean Water Act (CWA) National Pollutant Elimination Discharge System (NPDES), and/or Resource Conservation and Recovery Act (RCRA). Information also is provided on surrounding demographics when available.

Facility Level Information on Greenhouse Gases Tool

FLIGHT provides information about greenhouse gas (GHG) emissions from large facilities in the U.S. These facilities are required to report annual data about GHG emissions to EPA as part of the Greenhouse Gas Reporting Program (GHGRP).

Greenhouse Gas Reporting Program Reported Data

Data from the EPA's Greenhouse Gas Reporting Program

Data Pathfinders

Data pathfinders provide direct links to commonly-used datasets across NASA's Earth science data collections.

How's My Waterway

How's My Waterway was designed to provide the general public with information about the condition of their local waters based on data that states, federal, tribal, local agencies and others have provided to EPA.

NASA Worldview

The NASA Worldview app provides a satellite's perspective of the planet as it looks today and as it has in the past through daily satellite images.

U.S. Energy Mapping System

The U.S. Energy Mapping System is an interactive, comprehensive visual reference for energy infrastructure in the United States that shows the locations of energy infrastructure.

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