Results 11 to 20 of about 17,791 (261)
Evaluation of Exhaled Nitric Oxide in Schoolchildren at Different Exhalation Flow Rates [PDF]
Pediatric Research, 2002 Nitric oxide (NO) in exhaled air is believed to reflect allergic inflammation in the airways. Measured levels of exhaled NO vary with the exhaled flow rate, which therefore must be standardized. The aim of this study was to estimate the optimal exhalation flow rate when measuring NO in exhaled air.
Christophe, Pedroletti +3 more
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INFLUENCE OF SAMPLING FLOW RATE ON THORON EXHALATION RATE MEASUREMENTS BY THE CIRCULATION METHOD
Radiation Protection Dosimetry, 2022 AbstractResearchers have used various methods to obtain the exhalation rates of radon and thoron from soil and building materials. One of the typical methods for radon exhalation rate is the circulation method using an accumulation container, an external or internal sampling pump and a continuous radon monitor.
Masahiro Hosoda +11 more
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Radon and thoron exhalation rate in the soil of Western Haryana, India
Environmental Monitoring and Assessment, 2022 Abstract This study, reports the exhalation rates of radon and thoron from surface soil collected from 60 rural sites of district Hisar, Haryana, India. The exhalation rates of Rn222 (Radon)& Rn220(Thoron) were measured by portable SMART RnDuo (AQTEK SYSTEMS) using a mass accumulation chamber which is equipped with a scintillation material ...
Shakuntala, Rani +5 more
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Effect on Radon Exhalation Rate Due to Cracks in Concrete
Nordic Concrete Research, 2019 The second largest cause of lung cancer in the World is related to radon (222Rn) and its progenies in our environment. Building materials, such as concrete, contribute to the production of radon gas through the natural decay of 238U from its constituents.
Döse Magnus, Silfwerbrand Johan
doaj +1 more source
Radon emission fluctuation as a result of biochar application into the soil
Scientific Reports, 2021 The presented research was focused on the analysis of the impact of biochar application into the soil on the radon exhalation process as a new issue of radiation protection in agriculture.
Kamil Szewczak +5 more
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Environmental radon, its exhalation rates and activity concentration of 226Ra, 232Th, and 40kK in Northern India [PDF]
Nuclear Technology and Radiation Protection, 2020 Human beings are constantly exposed to radioactivity in the environment. As they are major sources of harmful radiation, radionuclides found in the atmosphere might result in a substantial potential risk to living beings. On the Earth's surface,
Kaur Rupinderjeet +3 more
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Natural Radionuclides and Radon Exhalation Rate in the Soils of Cauvery River Basin
Air, Soil and Water Research, 2017 In this study, systematic measurement of activity concentrations of 40 K, 226 Ra, and 232 Th and radon exhalation rate has been done in soil samples of Cauvery River environment.
CS Kaliprasad, PR Vinutha, Y Narayana
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Frontiers in Earth Science, 2021 Thoron (220Rn), an isotope of radon with a strong α-decay energy, and its short-lived metallic progeny can pose an elevated lung cancer hazard in room air when unfired-soil derived building materials are used in earthen dwellings.
Nguyệt Thị Ánh Nguyễn +4 more
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Radon exhalation rate and radon activity in soils of riverine environs of South Karnataka
Radiation Protection and Environment, 2018 In the present study, sealed “can technique” using solid-state nuclear track detector (LR-115) films was employed to measure the radon exhalation rate and radium concentration in soil samples of Cauvery river environment.
C S Kaliprasad, Y Narayana
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Radon-thoron measurements in air and soil from some districts of northern part of India [PDF]
Nuclear Technology and Radiation Protection, 2015 Radon, thoron and their progenies in the indoor environment are considered as one of the health hazards. The alpha emitting nature of these gases made it possible to detect in indoor environment with the help of nuclear track detector techniques.
Mann Nisha +3 more
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