نتایج جستجو برای: radon gas

تعداد نتایج: 251476  

2011
Riccardo Borgoni Valeria Tritto Carlo Bigliotto Daniela de Bartolo

Radon is a natural gas known to be the main contributor to natural background radiation exposure and second to smoking, a major leading cause of lung cancer. The main source of radon is the soil, but the gas can enter buildings in many different ways and reach high indoor concentrations. Monitoring surveys have been promoted in many countries in order to assess the exposure of people to radon. ...

Journal: :iranian journal of radiation research 0
l.a. mehdipour department of physics, faculty of science, university putra malaysia, malaysia s.m.j. mortazavi department of medical physics and medical engineering, school of medicine, shiraz university of medical sciences, shiraz, iran e.b. saion department of physics, faculty of science, university putra malaysia, malaysia h. mozdarani department of medical genetics, faculty of medical sciences, tarbiat modares university, tehran, iran s.a. aziz department of physics, faculty of science, university putra malaysia, malaysia h.m. kamari department of physics, faculty of science, university putra malaysia, malaysia

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), ...

2003
Barbra E. Erickson

There is a growing recognition in the United States and Europe that health care is driven to a significant extent by an emphasis on consumer choice and demand. As consumers, people regularly choose their own solutions for health promotion and maintenance, solutions which may or may not be sanctioned by mainstream medicine. Radioactive radon therapy exemplifies a non-sanctioned treatment eagerly...

2013
Wedad Reif Alharbi Adel G. E. Abbady

Soil gas radon Rn concentration was measured at 12 location in the Al-Qassim area, using radon gas analyzer-type Alpha GUARD 2000 PRQ from Genitron Instruments (Germany). In each location four different depths were taken for soil gas measurements, staring from the ground surface. The results suggested that the largest concentration was 340 ± 22 Bq/m for 60cm depth at in Al-Tarfia point sample P...

Journal: :iranian journal of radiation research 0
a.r. montazerabadi department of medical physics, afzalipour medical school, kerman university of medical sciences, kerman, iran m. ahmadian social developments and health promotion research center, kermanshah university of medical sciences, kermanshah, iran m.r. vahed department of medical physics, afzalipour medical school, kerman university of medical sciences, kerman, iran n. yousefi department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran a. fatehizadeh environment research center, and department of environmental health engineering, school of public health, isfahan university of medical sciences, isfahan, iran p. borhani department of radiology, school of allied medical sciences, kerman university of medical sciences, kerman, iran

background: radon (222rn) measurement in the residential environments is very important because of its effecting on human health and causing cancer in the respiratory system. 222rn is individually responsible for half of the natural radiation received in humans and influences on human by breathing. hence, this study was undertaken to access the 222rn level in the dormitories of kerman universit...

Journal: :Dose-response : a publication of International Hormesis Society 2006
Barbra E Erickson

There is a growing recognition in the United States and Europe that health care is driven to a significant extent by an emphasis on consumer choice and demand. As consumers, people regularly choose their own solutions for health promotion and maintenance, solutions which may or may not be sanctioned by mainstream medicine. Radioactive radon therapy exemplifies a non-sanctioned treatment eagerly...

2005

• Radon is a radioactive gas released from the normal decay of uranium in rocks and soil (see Question 1). • Radioactive particles from radon can damage cells that line the lungs and lead to lung cancer (see Question 3). • Radon is the second leading cause of lung cancer in the United States and is associated with 15,000 to 22,000 lung cancer deaths each year (see Question 4). • Studies showing...

2013
James Burkhart Thomas Huber George Bolling

Hydraulic fracturing or 'fracking' has become the industry standard for oil and gas production in the United States. The process entails fracturing large sections of rock with high pressure to release oil and gas reserves and to produce conduits for these fluids to flow more easily to the surface. Along with the intended natural gas, water, or any other fluids or other substances that might be ...

Journal: :Journal of environmental radioactivity 2011
Alexandre Cooper Thiem Ngoc Le Takeshi Iimoto Toshiso Kosako

Radon adsorption by activated charcoal collectors such as PicoRad radon detectors is known to be largely affected by temperature and relative humidity. Quantitative models are, however, still needed for accurate radon estimation in a variable environment. Here we introduce a temperature calibration formula based on the gas adsorption theory to evaluate the radon concentration in air from the av...

2016
Fredrick Neal FREDRICK B. NEAL Dajun Dai Jeremy Diem Daniel Deocampo

Radon (RN-222), naturally released from underground, is the second leading cause of lung cancer for at-risk groups after smoking, and the leading cause of lung cancer. This research aims to investigate the relationship between housing characteristics and indoor radon levels. Indoor radon data (1993 – 2013) were obtained from the DeKalb County Board of Health alongside housing characteristics so...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید