eGRID (EPA) – Emissions & Generation Resource Integrated Database

Comprehensive inventory of environmental attributes of electric power systems in the US. The preeminent source of air emissions data for the electric power sector, eGRID is based on available plant-specific data for all U.S. electricity generating plants that provide power to the electric grid and report data to the U.S. government. eGRID contains air emissions data for nitrogen oxides, sulfur dioxide, carbon dioxide, and mercury. Plant facilities have latitude and longitude fields, meaning they can be brought into GIS.

EPA – Clean Air Markets Program

Market-based regulatory programs to improve air quality. The site includes GIS data and other data available for download (see the CAM Data and Maps site –, as well as a library of publications and progress reports.

EPA Enviro Facts

From the Enviro Facts web site: “A single point of access to select U.S. EPA environmental data. This website 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. With Envirofacts, you can learn more about these environmental activities in your area or you can generate maps of environmental information.”

EPA Enviro Facts – Geospatial Data Download

You can now download a single GIS shape file with point data for all the following facilities:

  • Superfund National Priorities List (NPL)
  • RCRAInfo – Treatment, Storage, Disposal facilities
  • Toxic Release Inventory System – All reported years
  • NEPT – National Environmental Performance Track
  • Permit Compliance System (PCS) – National PollutantDischarge Elimination System (NPDES) Majors

Energy Information Administration

The main site for US energy statistics from the US Government (Department of Energy) – no GIS data but lots of tabular data on a variety of topics – mostly national or state level (state level can be joined to state GIS layer) – see for example, the Energy Consumption, Price, and Expenditure by State– the tables are in HTML but these can be easily brought into Excel and then into ArcGIS if joined to a state data layer.  (Save the page as html, then open it in Excel)

US Energy Information Administration Mapping Dataset

The US energy information administration data site with GIS data layers and interactive maps for environmental data and energy use in the US

Vulcan Project (Purdue University)

A NASA/DOE sponsored project to quantify North American greenhouse gas emissions – data available.