Daily Data Summary, EPA’s Japanese Nuclear Emergency: Radiation Monitoring, May 03, 2011 at 3:24 pm EDT:
Due to the consistent decrease in radiation levels across the country associated with the Japanese nuclear incident, EPA will update the daily data summary page only when new data are posted. Historical daily data summaries will continue to be accessible from this webpage.
After a thorough data review showing declining radiation levels related to the Japanese nuclear incident, EPA has returned to the routine RadNet sampling and analysis process for precipitation, drinking water and milk. [...]
Published: May 3rd, 2011 at 4:59 pm ET