Biomaterial Database

133 Xenon air contamination: a radiation safety aspect of pulmonary ventilation imaging. 1977

R R Hiscock

Potential leakage of 133 xenon is a covert, insidious facet of ventilation imaging procedures. Airborne xenon is often unrecognized and, consequently, unmanaged. The presence of xenon in air is usually unrecognized because it is not sought! Ventilation imaging procedures should incorporate safeguards for the protection of people against the internal exposure of radiation due to the inadvertent release of xenon gas in the air. Protective measures include surveillance by area survey and air monitoring, maintenance of equipment, establishment and preservation of safety procedures, and management of airborne contamination. The need to follow the accepted health physics objective to reduce radiation exposure of humans to the lowest practicable level is reaffirmed!

UI	MeSH Term	Description	Entries
D008171	Lung Diseases	Pathological processes involving any part of the LUNG.	Pulmonary Diseases,Disease, Pulmonary,Diseases, Pulmonary,Pulmonary Disease,Disease, Lung,Diseases, Lung,Lung Disease
D008452	Maximum Allowable Concentration	The maximum exposure to a biologically active physical or chemical agent that is allowed during an 8-hour period (a workday) in a population of workers, or during a 24-hour period in the general population, which does not appear to cause appreciable harm, whether immediate or delayed for any period, in the target population. (From Lewis Dictionary of Toxicology, 1st ed)	Maximum Permissible Exposure Level,MPEL,Maximum Permissible Exposure Concentration,Allowable Concentration, Maximum,Allowable Concentrations, Maximum,Concentration, Maximum Allowable,Concentrations, Maximum Allowable,MPELs,Maximum Allowable Concentrations
D011835	Radiation Protection	Methods and practices adopted to protect against RADIATION.	Protection, Radiation
D011877	Radionuclide Imaging	The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph.	Gamma Camera Imaging,Radioisotope Scanning,Scanning, Radioisotope,Scintigraphy,Scintiphotography,Imaging, Gamma Camera,Imaging, Radionuclide
D012119	Respiration	The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (	Breathing
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000398	Air Pollution, Radioactive	Contamination of air with radioactive substances.	Radioactive Air Pollution,Pollution, Radioactive Air
D013147	Spirometry	Measurement of volume of air inhaled or exhaled by the lung.	Spirometries
D014980	Xenon Radioisotopes	Unstable isotopes of xenon that decay or disintegrate emitting radiation. Xe atoms with atomic weights 121-123, 125, 127, 133, 135, 137-145 are radioactive xenon isotopes.	Radioisotopes, Xenon