Plumes show contamination at four dose levels: 15, 30, 100, and 500
millirem (mrem) per year.
In this case, the dose is measured in what are known as
millirems, a measure of radiation and its effectiveness at causing biological damage.
Those procedures deliver about 10
millirem and 13
millirem of radiation, respectively, or thousands of times more radiation than the full-body scanners used by TSA.
nuclear power plant has been less than one
millirem, compared to the annual average exposure from nature of 300
millirem.
The regulatory commission said the released gases and liquid were 0.1
millirem and .0009
millirem respectively, whereas the average person in the United States receives 300
millirem annually from "background radiation" -- rocks, soil, outer space.
The toes of biological effects seen in humans from exposures to high doses (100,000
millirem or more) of radiation are: SOMATIC (Prompt and Delayed), TEROTOGENIC, and GENETIC.
Ecology in Oak Ridge, I am looking at drums labeled RADIOACTIVE and SLUDGE and metal boxes (called B-25s or Sea-Lands) identified by
millirem dose rates--.4 MR/HR, .8 MR/HR, 2 MR/HR, 5 MR/HR.
Because, explains Johnson, "the plant's wastewater would irradiate the lake." This fear has no basis in fact: Treated after it's used as a cleaning agent, plant water contains 0.1
millirem a year of radioactivity, while the normal human dose of radioactivity from the earth alone is 360
millirems a year.
The average effective dose equivalent of radiation to which a person in the United States is exposed annually is estimated to be about 350
millirem. (A
millirem is a unit that estimates the biological impact of a particular type of radiation absorbed in the body.)
Also, the radiation field surrounding the reactor's internal pumps is 80
millirem per hour, a fraction of the 500 mr per hour surrounding large recirculation pumps in standard BWR designs.
VDTs do emit ionizing radiation, but at such a low level--less than one
millirem per month--that the danger is negligible.