Search results
Results from the WOW.Com Content Network
Interest in the levels of radiation all over the nation increased dramatically during the Fukushima I nuclear accidents. At that time, a number of people began streaming from monitoring stations, and some international organizations conducted special monitoring operations to assess the state of radiation levels near the power plant and ...
Fukushima I and II Nuclear Accidents Overview Map showing evacuation and other zone progression and selected radiation levels. The Japanese reaction occurred after the Fukushima Daiichi nuclear disaster, following the 2011 TÅhoku earthquake and tsunami. A nuclear emergency was declared by the government of Japan on 11 March.
Because of the large amount of short-lived fission products, the activity and radiation levels of nuclear fallout decrease very quickly after being released; it is reduced by 50% in the first hour after a detonation, [17] then by 80% during the first day.
Radiation levels in Tokyo on 15 March were at one point measured at 0.809 μSv/hour although they were later reported to be at "about twice the normal level". [ 203 ] [ 204 ] Later, on 15 March 2011, Edano reported that radiation levels were lower and the average radiation dose rate over the whole day was 0.109 μSv/h. [ 203 ]
Radiation poisoning, also called "radiation sickness" or a "creeping dose", is a form of damage to organ tissue due to excessive exposure to ionizing radiation. The term is generally used to refer to acute problems caused by a large dosage of radiation in a short period, though this also has occurred with long-term exposure to low-level radiation.
1945 – There were some 93,000 individuals, either living in Hiroshima or Nagasaki, Japan. 1950 – An additional 37,000 were registered by this time, for a total of 130,000 LSS members. However, some 44,000 individuals were censured or excluded from the LSS project, so there remained about 86,000 people who were followed through the study.
INES Level 2 Tsuruga: Overexposure of workers More than 100 workers were exposed to doses of up to 155 millirem per day radiation during repairs of a nuclear power plant. [2] June 1999 INES Level 2 [3] Shika plant, Ishikawa Prefecture: Control rod malfunction
Each increasing level represents an accident approximately ten times as severe as the previous level. Compared to earthquakes, where the event intensity can be quantitatively evaluated, the level of severity of a human-made disaster, such as a nuclear accident, is more subject to interpretation. Because of this subjectivity, the INES level of ...