United States Sources

Office of Air and Radiation

The Office of Air and Radiation (OAR) develops national programs, technical policies, and regulations for controlling air pollution and radiation exposure.

Region 5 Air and Radiation Division

This division of the Office of Air and Regulation has information about air pollution and radiation in Region 5 of the United States which includes Wisconsin.

Laws and Regulations(EPA)

This site provides access to and information about the laws and regulations of the Environmental Protection Agency.

Agency for Toxic Substances and Disease Registry (ATSDR)

The Agency for Toxic Substances and Disease Registry (ATSDR) serves the public by using the best science, taking responsive public health actions, and providing trusted health information to prevent harmful exposures and diseases related to toxic substances

USGS Water Science Center

This site provides information from the USGS exclusively on water resources in the state of Wisconsin such as water quality, stream flow, and groundwater levels.


This database form the Environmental Protection Agency provides water quality data for wetlands, oceans and watersheds from across the United States.

Web Soil Survey

This interactive site allows users to access county soil survey information from throughout the United states and create maps of areas of interest to them.


The National Institutes of Health maintains this site which allows users to create maps cross tabulating data fields from mortality statistics with the Toxic Release Inventory (TRI)from the Environmental Protection Agency.


This site presented by the National Library of Medicine provides information about the occupational exposure to hazardous materials.

U.S. Forest Service

This is the web portal for the U.S. Forest Service, the agency responsible for overseeing the management of our nations forests and protecting the environment.


Treesearch is a database for searching the digital collection of U.S. Forest Service Research Station publications.

Environment Conservation Online System

This site sponsored by the U.S. Fish and Wildlife Service is a gateway web site that provides access applications which manage data regarding threatened and endangered species, fisheries,and habitat conservation.