نتایج جستجو برای: radon reduction
تعداد نتایج: 498540 فیلتر نتایج به سال:
The motivation for performing indoor radon reduction measurements or mitigation are generally communicated by the commercial radon industry on the basis of identifying and eliminating a potential health hazard. The role of the commercial indoor radon industry is complicated by the different perspectives of the problem that have developed for various interested parties. Interested parties includ...
background: in iran, architectures are often unaware of the risk of radon inhalation and how to reduce radon levels. furthermore, radon considerations are not implemented in construction methods, construction materials and building utilization by regulatory authorities. materials and methods: in this study after reviewing the meteorological changes of ramsar over the past 50 years (1955-2005), ...
ABSTRACT Background: and soils with which it comes in contact. There is dual exposure from radon in water i.e. due toinhalation of the radon released from the water into the ambient air and through ingestion whenwater is used for drinking. As radon contaminated water adversely affects the health, it istherefore fundamental from health and hygiene point of view to measure radium concentrationand...
Background: Inhalation of radon and its short-lived decay products is one of the ‎most significant sources of exposure to natural radiation. Radon is the second cause ‎of lung cancer in the populations. The present study was carried out under the projects of ‎national radon, with the aim of determining the concentration of indoor in the city of Qom ‎located in the central se...
PURPOSE/OBJECTIVES To gather data on radon levels and determine correlations among subjects' characteristics, willingness to test for radon, and perceptions of radon as a health risk. DESIGN Descriptive correlational. SETTING Rural DeKalb County in northern Illinois. SAMPLE 473 respondents from a group of 1,620 randomly selected county residences. METHODS Participants were surveyed via ...
Background and Objectives: Entrance of high concentration of Radon gas through drinking water or inhaling Radon gas released into the air from water can cause lung cancer. This study aimed to measure Radon gas dissolved in groundwater and to determine the annual effective absorbed dose of Radon gas in Zarand city. Materials and Methods: This descriptive study was done on 48 randomly selected r...
Background: While in the open air the amount of radon gas is very small and does not pose a health risk, in confined spaces, radon can accumulate to relatively high levels and become a health hazard. Exposure to high levels of radon has been associated with an increased risk of lung cancer, depending on the time length of exposure. Radon level in dwelling of Shiraz with 1,200,000 popul...
Introduction: Exposure to indoor radon increases the risk of lung cancer. This study examined the level of indoor radon in dwellings of Khorramabad city, by using passive alpha-track detector (CR-39) during winter of 2016. Materials and Methods: In the present study, we detected the concentration of indoor radon in 56 dwellings. A passive sampling instrument (alpha-track detector with CR-39 pol...
Background & Aims: Human beings are constantly exposed to different radiations that have always been recognized as a health hazard. Radon -222 and its daughter products are major sources of natural radiations and a significant total inhalation dose is related to them. Hence, the measurement of radon activity in the environment has gained an increasing importance. In this study, with the measure...
Background: A substantial part of the public’s natural radiation dose is due to the inhalation of radon gas. Most of the exposure occurs indoors where the airborne concentration of radon and its decay products is usually higher than outdoors. Materials and Methods: Radon activity concentration has been measured twice in 50 classrooms in 5 levels (10 each) during summer and winter using solid-st...
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