Recommended Exposure Limits*, Table
-
▪ Tabletype of exposure maximum permissibledoseOccupational exposures (annual)**Effective dose-equivalent limit(stochastic effects) 50 mSvDose-equivalent limits for tissuesand organs (non-stochastic effects)Lens of eye 150 mSvAll others (
e.g., red bone marrow, breast, lung, gonads,skin, and extremities) 500 mSvGuidance: cumulative exposure 10 mSv times agePlanned special occupational exposure,effective dose-equivalent limit*** 100 mSvGuidance for emergency occupational exposure ****Public exposures (annual)Effective dose-equivalent limit,continuous or frequent exposure** 1 mSvEffective dose-equivalent limit,infrequent exposure** 5 mSvRemedial action recommended when:Effective-dose equivalent greater than 5 mSvExposure to radon and itsdecay products greater than 0.007 Jhm^-3 *****Dose-equivalent limit for lens ofeye, skin, and extremitiesEducation and training exposures (annual)**Effective dose-equivalent limit 1 mSvDose-equivalent limit for lens ofeye, skin, and extremities 50 mSvEmbryo-fetus exposures**Total dose-equivalent limit 5 mSvDose-equivalent limit in a month 0.01 mSvNegligible individual risk level (annual)**Effective dose equivalent per source ofpractice 0.5 mSv*Including background but excluding internal exposures. **Sum ofexternal and internal exposures, excluding medical exposures. ***Effectivedose equivalent in any one planned event or cumulative effective doseequivalent in planned special exposures over a working lifetime shouldnot exceed 100 mSv (10 rem). ****Acute exposures in excess of 100 mSv(10 rem) are justified only by life-saving actions in emergency situations.*****Joule hours per cubic metre. ^ indicates exponentiation.Source: National Council on Radiation Protection and Measurements,
Ionizing Radiation Exposure of the Population of the United States (1987). * * *
Universalium. 2010.
Look at other dictionaries:
Exposure (photography) — Underexposure redirects here. For the 2005 film by Oday Rasheed, see Underexposure (2005 film). A long exposure showing stars rotating around the southern and northern celestial poles. Credit: European Southern Observatory … Wikipedia
radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… … Universalium
Benzene — For other uses, see Benzene (disambiguation). See also: Benzole Benzene … Wikipedia
Threshold limit value — The threshold limit value (TLV) of a chemical substance is a level to which it is believed a worker can be exposed day after day for a working lifetime without adverse health effects. Strictly speaking, TLV is a reserved term of the American… … Wikipedia
Film speed — is the measure of a photographic film s sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital… … Wikipedia
Oxygen toxicity — Classification and external resources In 1942–43 the UK Government carried out extensive testing for oxygen toxicity in divers. The chamber is pressurised with air to 3.7 … Wikipedia
Mercury (element) — gold ← mercury → thallium Cd ↑ Hg ↓ Cn … Wikipedia
2009 flu pandemic — Pandemic H1N1/09 Influenza Classification and external resources Electron microscope image of the reassorted H1N1 influenza virus. The viruses are 100 nanometres in diameter.[ … Wikipedia
Right to know — is the legal principle that the individual has the right to know the chemicals to which they may be exposed in their daily living. It is embodied in federal law in the United States as well as in local laws in several states. Right to Know laws… … Wikipedia
Acetic acid — Acetic redirects here. It is not to be confused with Ascetic. Acetic acid … Wikipedia
