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The most common artificial source of ionizing radiation, dental x-rays are linked to an increased risk of meningioma. Ionizing radiation is a consistently identified and potentially modifiable risk factor for meningioma, a type of brain tumor accounting for 33% of all primary brain tumors. Dental x-rays are the most common artificial source of ionizing radiation. …
Radon is a radioactive, colorless, odorless, tasteless noble gas, occurring naturally as the decay product of uranium or thorium. Its most stable isotope, 222Rn, has a half-life of 3.8 days. Radon is one of the densest substances that remains a gas under normal conditions. It is also the only gas that is radioactive under normal …