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[11] [12] There is much less data, and much more controversy, regarding the possibility of cardiac and teratogenic effects, and the modelling of internal dose. [13] The ICRP recommends limiting artificial irradiation of the public to an average of 100 mrem (1 mSv) of effective dose per year, not including medical and occupational exposures. [10]
Recognized effects of higher acute radiation doses are described in more detail in the article on radiation poisoning.Although the International System of Units (SI) defines the sievert (Sv) as the unit of radiation dose equivalent, chronic radiation levels and standards are still often given in units of millirems (mrem), where 1 mrem equals 1/1,000 of a rem and 1 rem equals 0.01 Sv.
The total dose from Chernobyl is estimated at 80,000 man-sieverts, or roughly 1/6 as much. [1] However, some individuals, particularly in areas adjacent the reactor, received massively higher doses. Chernobyl's radiation was detectable across Western Europe. Average doses received ranged from 0.02 mrem to 38 mrem (portions of Germany). [1]
A typical chest x-ray delivers 20 μSv (2 mrem) of effective dose. [47] A dental x-ray delivers a dose of 5 to 10 μSv. [48] A CT scan delivers an effective dose to the whole body ranging from 1 to 20 mSv (100 to 2000 mrem). The average American receives about 3 mSv of diagnostic medical dose per year; countries with the lowest levels of health ...
The 2000 UNSCEAR estimate for worldwide average natural background radiation dose is 2.4 mSv (240 mrem), with a range from 1 to 13 mSv. A small area in India as high as 30 mSv (3 rem). A small area in India as high as 30 mSv (3 rem).
The measurement of ionizing radiation is sometimes expressed as being a rate of counts per unit time as registered by a radiation monitoring instrument, for which counts per minute (cpm) and counts per second (cps) are commonly used quantities.
The consumer healthcare company is recalling the cough syrup, sold under the brand name "Robitussin Honey CF Max Day Adult" in 4-ounce and 8-ounce doses, along with its 8-ounce night-time version.
The origins of the concept are uncertain, but one early mention can be found on the RadSafe nuclear safety mailing list in 1995, where Gary Mansfield of the Lawrence Livermore National Laboratory mentions that he has found the "banana equivalent dose" to be "very useful in attempting to explain infinitesimal doses (and corresponding infinitesimal risks) to members of the public". [2]