Show Summary Details

Quick Reference

A radioactive inert gas, atomic number 86, the decay product of radium. The most stable isotope, radon-222, has a half-life of 3.825 days. Relatively high concentrations of radon may occur in mines and inside buildings built above certain rocks, such as granite. This is regarded as a health hazard requiring remedial measures, although currently unconfirmed research suggests that the danger in homes may have been overestimated. See also thoron.

Subjects: Environmental Science.

Reference entries

See all related reference entries in Oxford Index »

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content. subscribe or login to access all content.