title: Behaviours and influence factors of radon progeny in three typical dwellings.
abstract: To investigate the behaviours and influence factors of radon progeny in rural dwellings in China, site measurements of radon equilibrium factor, unattached fraction and some important indoor environmental factors, such as aerosol concentration, aerosol size distribution and ventilation rate, were carried out in three typical types of dwellings, and a theoretical study was also performed synchronously. Good consistency between the results of site measurements and the theoretical calculation on equilibrium factor F and unattached fraction f(p) was achieved. Lower equilibrium factor and higher unattached fraction in mud or cave houses were found compared to those in brick houses, and it was suggested by the theoretical study that the smaller aerosol size distribution in mud or cave houses might be the main reason for what was observed. The dose conversion factor in the mud houses and the cave houses may be higher than that in brick houses.
authors.affiliation: State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China.
authors.forename: Hongzhao
authors.initials: H
authors.lastname: Li
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Qiuju
authors.initials: Q
authors.lastname: Guo
mesh_terms: D016902:Air Pollution, Indoor / Q000032:analysis*; D002681:China; D003198:Computer Simulation; D008962:Models, Theoretical; D010316:Particle Size; D017687:Radon Daughters / Q000032:analysis* / Q000737:chemistry*; D012111:Residence Characteristics
chemical_list: D017687:Radon Daughters