Legacy Eight-Digit Hydrologic Unit boundaries and codes for the United States, Puerto Rico, and the U.S. Virgin Islands.
Category: Data.
EPA has many data sources available, these cover topics including but not limited to air, climate change, health risks, pollutants and contaminants, waste, and water. The data are downloadable and available through the Environmental Dataset Gateway (EDG).
This web service contains the following state level layers:Ozone 8-hr (1997 standard), Ozone 8-hr (2008 standard), Lead (2008 standard), SO2 1-hr (2010 standard), PM2.5 24hr (2006 standard), PM2.5 Annual (1997 standard), PM2.5 Annual (2012 standard), and…
The Polychlorinated Biphenyls (PCB) Transformer Registration Database tracks geographic and dated information of registered PCB transformers.
Each EPA Regional Office is responsible within its states for the execution of the Agency’s programs. EPA has ten regional offices, each of which is responsible for several states and territories.
The Clean Watersheds Needs Survey (CWNS) is a comprehensive assessment of the capital needs to the water quality goals set in the Clean Water Act. Every four years, the states and EPA collect information about publicly owned wastewater collection and trea…
This map shows cumulative changes in relative sea level from 1960 to 2015 at tide gauge stations along U.S. coasts. Relative sea level reflects changes in sea level as well as land elevation.
A REST web service API allowing the retrieval of real time air quality index data from AirNow.
This EnviroAtlas dataset was produced by a joint effort of New Mexico State University, US EPA, and the US Geological Survey (USGS) to support research and online mapping activities related to EnviroAtlas. Ecosystem services, i.e., services provided to hu…
This EnviroAtlas dataset contains polygons depicting the geographic areas of market-based programs, referred to herein as markets, and projects addressing ecosystem services protection in the United States. Depending upon the type of market or project and…
The Walkabiliy Index dataset characterizes every Census 2010 block group in the U.S. based on its relative walkability. Walkability depends upon characteristics of the built environment that influence the likelihood of walking being used as a mode of trav…