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2. Radon mitigation - Wikipedia

   en.wikipedia.org/wiki/Radon_mitigation

   Part of a radon mitigation system including the fan and vent pipe is visible near the gutter downspout. Because high levels of radon have been found in every state of the United States, [18] testing for radon and installing radon mitigation systems has become a specialized industry since the 1980s. Many states have implemented programs that ...

3. Health effects of radon - Wikipedia

   en.wikipedia.org/wiki/Health_effects_of_radon

   If it is suspected that a private well or drinking water may be affected by radon, the National Radon Program Services Hotline at 1-800-SOS-RADON can be contacted for information regarding state radon office phone numbers. State radon offices can provide additional resources, such as local laboratories that can test water for radon. [109]

4. New Hampshire Department of Environmental Services

   en.wikipedia.org/wiki/New_Hampshire_Department...

   The New Hampshire Department of Environmental Services (NHDES) is a state agency of the U.S. state of New Hampshire, headquartered in Concord. The department works to "sustain a high quality of life for all citizens by protecting and restoring the environment and public health" in the state. [1]

5. Radium and radon in the environment - Wikipedia

   en.wikipedia.org/wiki/Radium_and_radon_in_the...

   Maps of average radon levels in houses are available, to assist in planning mitigation measures. [8] While high uranium in the soil/rock under a house does not always lead to a high radon level in air, a positive correlation between the uranium content of the soil and the radon level in air can be seen.

6. Radon - Wikipedia

   en.wikipedia.org/wiki/Radon

   Radon concentrations can vary daily, and accurate radon exposure estimates require long-term average radon measurements in the spaces where an individual spends a significant amount of time. [ 172 ] Radon levels fluctuate naturally, due to factors like transient weather conditions, so an initial test might not be an accurate assessment of a ...

7. Indoor air quality - Wikipedia

   en.wikipedia.org/wiki/Indoor_air_quality

   Radon is measured in picocuries per liter of air (pCi/L) or becquerel per cubic meter (Bq m-3). Both are measurements of radioactivity. The World Health Organization (WHO) sets the ideal indoor radon levels at 100 Bq/m-3. [97] In the United States, it is recommend to fix homes with radon levels at or above 4 pCi/L.