The average dose to the 160 million people living in the United States at the time was about 2 rads, about five times the dose given in a modern mammogram.
22.
D ( t ) is the dose rate ( usually in Gy / ka or microGy / a ), which is the average dose absorbed by the sample in 1 year.
23.
For example, earlier drafts said children received 10 times the average dose of iodine; today officials said the fallout exposed them to three to seven times the average amount of iodine.
24.
The average dose was small, about what a person gets in a medical thyroid scan, but some children got doses 50 times higher by drinking milk from cows that ate tainted grass.
25.
For purposes of comparison, the world average dose rate from naturally occurring sources of background radiation is 2.4 mSv per year, equal for practical purposes in this application to 2.4 mGy per year.
26.
The average dose is estimated to have been 120 millisieverts ( 12 rem ) and 85 % of the recorded doses were between 20 and 500 millisieverts ( 2 to 50 rems ).
27.
An average dose, about a tenth of a gram, costs $ 2 in Bishkek, half that in Osh, the major city in southern Kyrgyzstan where the supply is greater, and 50 cents in Tajikistan.
28.
The report stated, " During the course of the accident, approximately of radioactive noble gases and of radioiodines were released . " This resulted in an average dose of to the two million people near the plant.
29.
Similar results were obtained for a three-month period from September 2011 : among a group of 36, 767 residents in Fukushima city, 36, 657 had been exposed to less than 1 millisievert, and the average dose was 0.26 millisieverts.
30.
The purpose of the BRET measure is to allow a low level dose to be easily compared with a universal yardstick : the average dose of background radiation, mostly from natural sources, that every human unavoidably receives during daily life.
