Table 1 - uploaded by Maryam Hadavi
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Source publication
Influence of natural ventilation conditions on the radon annual effective dose of the lungsimulatedfor radon prone areas of Ramsar
Mehdipour L.A1, 2*, DoostMohammadi F3,Saion EB2,Qasemi N3, Hadavi M4
1PhD in Applied radiation physics, radiology department, faculty of paramedical sciences, Rafsanjan University of Medical Sciences (RUMS), Rafsanjan,...
Citations
... Natural radiation sources are the main cause of radiation exposure for human beings. It is estimated that the contribution of natural sources of radiation exposure to humans is more than 98% of which 52% is related to the inhalation of radon and its decay products in indoor environments such as homes and workplaces (1)(2)(3) . Radon is an odorless, colorless radioactive gas (4) which comes from the natural decay of uranium in soil and rocks (5) . ...
... In order to achieve accuracy and precision of results as well as data quality assurance, three detectors as the duplicate sample (at least 10% of all the testing locations) and three detectors as the blank sample (5% of all the testing locations) were considered (3) . Thus, in this study, 30 detectors were distributed and installed in 24 dwellings across the city. ...
Background: One of the most important natural sources of human exposure
is inhalation of radon radioactive gas and its decay products in homes and at
workplaces. According to the World Health Organization, radon is the second
leading cause of lung cancer. This study is the first survey of indoor radon
concentration in dwellings of the Aleshtar city (west of Iran). Materials and
methods: In this work, radon concentrations were measured in 24 dwellings
by using a passive method known as Alpha Track Detectors (ATDs) with CR-39
polycarbonate film for three months during the year 2016. In addition, the
annual effective dose due to radon exposure was estimated for residents.
Results: The indoor radon concentration ranged from 1.01 to 206.53 Bq/m3
with an average value of 55.19 Bq/m3 (CI (Confidence Interval) 95%: 31.46 -
78.92), and the average annual effective dose to the population in Aleshtar
was estimated to be 1.39 mSv/y. According to the result of this study, there
was a significant difference between apartment buildings and villas as well as
between different floors in terms of the average radon concentration.
Conclusion: It was found that radon concentration in 20.8% of dwellings was
higher than the reference levels recommended by the World Health
Organization (100 Bq/m3)
Introduction: lantern mantles used in gas burners contain quantities of radionuclides. Thorium is a long-lived radionuclide, which in turn increases the dose and effects of radiation on human. The aim of this study was to determine the radiation level of gas burner lamps available in Iranian market using alpha-auto-radiography and dosimetry techniques
