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• 14:32, 10 April 2026 Dbk talk contribs created page Radon in the air (Created page with "{{underconstruction}} ==Radon in the air== Radon (chemical symbol: Rn) is a naturally occurring radioactive gas that is released from the ground and is present everywhere. Outdoor Rn levels in the UK are low, typically a few becquerels (Bq) per cubic metre (m3) of air. (1 Bq means one event per second on average for aperiodic radioactive decays.) Indoor Rn levels vary across the UK from less than ten to thousands of Bq per m3 of air. More information is available at UKr...")