نتایج جستجو برای: radon alpha particles exhalation soil cr

تعداد نتایج: 581344  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1999
R C Miller G Randers-Pehrson C R Geard E J Hall D J Brenner

Domestic, low-level exposure to radon gas is considered a major environmental lung-cancer hazard involving DNA damage to bronchial cells by alpha particles from radon progeny. At domestic exposure levels, the relevant bronchial cells are very rarely traversed by more than one alpha particle, whereas at higher radon levels-at which epidemiological studies in uranium miners allow lung-cancer risk...

2014
Samaneh Baradaran Niaz Maleknasr Saeed Setayeshi Mohammad Esmaeil Akbari

BACKGROUND Alpha particle irradiation from radon progeny is one of the major natural sources of effective dose in the public population. Oncogenic transformation is a biological effectiveness of radon progeny alpha particle hits. The biological effects which has caused by exposure to radon, were the main result of a complex series of physical, chemical, biological and physiological interactions...

Introduction: Smokers and non-smokers are at the risk of developing lung cancer when exposed to alpha rays as a result of the relatively low levels of radium and radon that may be present in different tobacco species. There is a great interest in studies and research on the radionuclides in narghile tobacco emitting alpha particles to know the relationship between smok...

Journal: :Journal of Atmospheric Electricity 1982

Journal: :Journal of Nuclear Science and Technology 2004

Journal: :iranian journal of radiation research 0
m.k. alqadi department of physics, jordan university of science and technology, irbid, jordan f.y. alzoubi department of physics, jordan university of science and technology, irbid, jordan m.a. jaber department of physics, jordan university of science and technology, irbid, jordan

background: radon concentration was measured in the soil and indoor of amman and al- rusaifa cities in jordan during summer season. materials and methods: the measurement was performed using time-integrated passive radon dosimeters, containing a solid state nuclear track plastic detector, commercially known as cr-39. results: radon concentration levels in the soil ranged from 2.8 ± 1.2 to 6.9 ±...

Journal: :international journal of environmental research 2015
s. sedighian s. h. kim s. y. cho m. j. kim d. h. kim

indoor radon concentration (irc) is among the emerging environmental and health issues in republic of korea. due to lack of epidemiological studies and insufficient public awareness about radon, effective parameter ranking system is required to establish protocols for future field sampling and settlement construction. this research propose the irc parameter ranking system based on field measure...

2005

Introduction Radiation that has sufficient energy to remove electrons from atoms is called “ionizing radiation.” Ionization results in the production of negatively charged free electrons and positively charged ionized atoms. Ionizing radiation can be classified into two groups: photons (includes X-radiation and gamma radiation) and particles (includes alpha and beta particles and neutrons). The...

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