Changes

*Comes [[Background Radiation|Background radiation]] comes from sources such as the ground, building materials, and [[Cosmic Radiation|cosmic radiation]].*[[MeasureBackground Radiation|Background radiation]] is [[measure]]d in units of [[Becquerel]]s (Bq) per .*[[kilogramBackground Radiation|Background radiation]].*Contributes contributes to the [[radiation]] dose received by humans.*[[Background Radiation|Background radiation]] levels vary with location due to local geological features and altitude due to the [[Earth's Atmosphere|atmosphere]] blocking [[Cosmic Ray|cosmic rays]].*[[Background Radiation|Background radiation]] is a baseline level of [[Ionising Radiation|radiation]] that must be accounted for in [[Ionising Radiation|radiation]] measurements.*[[Background Radiation|Background radiation]] is generally low but can be higher in areas with significant natural [[radioactive]] deposits.