title: A comparison of radon and its decay products' behaviour in indoor air.
abstract: The inhalation of short-lived radon decay products (RDP) yields the greatest contribution to the natural radiation exposure. This paper deals with a study carried out to improve the knowledge of the behaviour of RDPs, their interaction with particulates and the plateout during the time. The tests confirmed that a high aerosol particle concentration increases the probability that an ion sticks to aerosol and remains long in the air, leading to both an increase of F and a decrease of fp, as reported in the literature. The same experimental protocol applied in a small radon chamber showed a strong reduction of the equilibrium factor (an average of ∼10 %), because in a small environment the plateout phenomenon prevails on the attachment to particulate.
authors: Department of Occupational Hygiene, INAIL (Italian National Workers Compensation Authority), Research Sector, Monteporzio Catone (Rome) 00040, Italy r.trevisi@inail.it.
authors: R
authors: R
authors: Trevisi
authors: Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti ENEA-INMRI (Casaccia), Rome 00123, Italy.
authors: F
authors: F
authors: Cardellini
authors: Department of Occupational Hygiene, INAIL (Italian National Workers Compensation Authority), Research Sector, Monteporzio Catone (Rome) 00040, Italy.
authors: F
authors: F
authors: Leonardi
authors: Department of Civil and Mechanical Engineer, University of Cassino and Southern Lazio, Cassino (Frosinone) 03043, Italy.
authors: C
authors: C
authors: Vargas Trassierra
authors: Department of Rome, ARPA Lazio, Rome 00100, Italy.
authors: D
authors: D
authors: Franci
mesh_terms: D000336:Aerosols / Q000032:analysis*; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D006801:Humans; D052638:Particulate Matter / Q000032:analysis*; D011834:Radiation Monitoring; D011886:Radon / Q000032:analysis*
chemical_list: D000336:Aerosols; D000396:Air Pollutants, Radioactive; D052638:Particulate Matter; D011886:Radon