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Airthings easily makes the best consumer Radon detector in my experience. The 24 hour rolling average is annoying but it's still reasonably accurate in real time. Citizens should have the ability to rent a Alpha particle monitor from a local library to directly detect for leak locations. The data is outdated and confusing, but Radon as a gas is not necessarily directly toxic. Radon attached to particulates is supposedly 90% of its toxicity. Radon infused particulates inside of a HEPA filter have the ability to de-attach and be readmitted into the air. Inhalation of Radon progeny causes oxidative stress in real time. When you inhale a Radon dust particle, and it's in your lungs for 3-24 hours, it's far more likely to decay/cause oxidative stress in the lungs versus inhaling Radon gas/exhaling it right back out. Radon also causes secondary VOC emissions from surfaces/plastics like pipes you could find in a basement. Ambient natural ozone levels modulate Radon levels as well. Radon is also used as a form of alternative medicine in some parts of the world. Radon is also emitted from building materials such as bricks/granite counter tops. Bring a monitor to a building materials store, you will see instant excess radiation. Further, monitoring of non Radon/Alpha radiation particles is important. Such as, inhalation of beta particles can cause oxidative stress as well.

Radon can also be emitted from water/the shower itself. Also in my experience, smoking cannabis emits radiation. I can be at a fast food drive thru and the driver in front of me is smoking weed. Both my VOC sensors & radiation sensors go up. Radiation can be absorbed/deposited on any plant, including tobacco.

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