Radon concentration and radiation exposure levels in workplace buildings of downtown Rio de Janeiro City, SE, Brazil

Influences of COVID-19 pandemic lockdown on excess lifetime cancer risk value of natural radiation

“…The UNSCEAR report [ 15 ] applied the following equation to measure the annual effective dose (D) due to indoor radon. This equation gives the annual effective dose value which exposure by indoor radon concentration to people[ 3 , 16 ]: …”

“…The UNSCEAR report [15] applied the following equation to measure the annual effective dose (D) due to indoor radon. This equation gives the annual effective dose value which exposure by indoor radon concentration to people [3,16]: here C is the indoor radon concentration (Turkey average is 57 Bq m −3 ) [14], EqF is the radon and its progenies equilibrium factor (0.4), T is the number of hours in a year (8760 h y −1 ), and DCF is the dose conversion factor (6.7 nSv/Bq m −3 ), OF is the occupancy factor.…”

Indoor Radon Testing, Effective Dose and Mitigation Measures in a Residential House of a Mining Area

“…Average annual human exposure (effective dose) to all natural radioactive sources is estimated to be 2.4 mSv, and about 52% of this exposure is caused by the inhalation of radon [7]. Many studies have been conducted worldwide to evaluate the radiation dose to inhabitants caused by radon [8][9][10][11]. Previous studies in the area of Kosovska Mitrovica have also shown increased indoor radon concentrations in dwellings, which the authors have indicated a radon-prone area [12][13][14].…”