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RadNet (Environmental Radiation Ambient Monitoring System)

Published by U.S. EPA Office of Air and Radiation (OAR) - Office of Radiation and Indoor Air (ORIA) | U.S. Environmental Protection Agency | Catalog Last Checked: May 01, 2026 at 06:06 PM | Dataset Last Updated: January 10, 2014
RadNet, formerly Environmental Radiation Ambient Monitoring System (ERAMS), is a national network of monitoring stations that regularly collect air, precipitation, drinking water, and milk samples for analysis of radioactivity. The RadNet network has been used to track environmental releases resulting from nuclear emergencies and to provide baseline data during routine conditions.

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