Frequent Questions

Why does the EPA test precipitation for radionuclides?

By monitoring precipitation on a regular basis, the EPA is able to establish normal background levels of radioactivity and detect activity from man-made radioactive sources. Analyzing precipitation samples along with air filters helps determine the amount and type of radioactive material present.

 

For more information about precipitation sampling analysis and results, visit Envirofacts on EPA.gov.

For more information, visit RadNet on EPA.gov.

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