The finding emerged in a map published Aug. 29 that for the first time shows contamination levels of areas within a 100-km radius of the plant.
One location in the town of Okuma had the highest value at about 30 million becquerels of cesium of all types per square meter.
About 8 percent of the measured areas recorded more than 555,000 becquerels, the figure that required forcible relocation by residents in the 1986 Chernobyl nuclear incident.
The map shows that areas with high radiation levels are concentrated in a zone to the northwest of the plant within a 40-km radius of the facility.
Many of the areas with such high levels are within the no-entry zone and the planned evacuation zone, but those levels were also detected outside of the zones in parts of Fukushima, Motomiya and Koriyama cities. The no-entry zone is within a 20-km radius area of the plant, while the planned evacuation zone is an area that could see more than 20 millisieverts of accumulated radiation in a year after the March 11 onset of the plant’s crisis.
Areas showing levels exceeding safety standards are estimated at 8,300 hectares.
The Fukushima prefectural government on the same day released the results of the first measurements of radiation levels of rice paddies in the no-entry zone. The government found levels above safety standards at 20 locations out of the 89 sites examined in areas near the plant, including the no-entry zone and the planned evacuation zone.
- Ground Level Radiation Still Threat | METI Survey of Fukushima Evacuation Zones (enformable.com)
- 29 million bq/m² detected in Okumamachi nearby Fukushima meltdown (enenews.com)
- 34 points near Fukushima plant exceed radiation standard used for Chernobyl (enformable.com)
- Yet Another Government Survey of Fukushima Evacuation Zones (ex-skf.blogspot.com)
- Japan gov’t finds 165 locations over wide area with cesium-137 exceeding Chernobyl evacuation levels – Data shows radiation could be “spreading to other areas” (enenews.com)
- Fukushima Updated: 3 Fukushima nuke plant workers blasted with beta radiation (enformable.com)
- Despite Battling Radiation Leaks From Fukushima Over 80% of Tohoku Quake and Tsunami Rubble “Completely Removed” (enformable.com)
- New TEPCO data suggests there are 5 active faults near Fukushima nuke plant – Previously considered unlikely to cause quakes (enenews.com)
- Enformable September 2nd 2011 (news.lucaswhitefieldhixson.com)
- Mainichi: Fukushima nuke plant workers blasted with beta radiation (enenews.com)