Source: "Aircraft monitoring around TEPCO's Fukushima Daiichi Nuclear Power Station" (Nuclear Regulation Authority)
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The average air dose rate within an 80 km radius of the nuclear power station has decreased by about 80% from November 2011.
Source: Eliminating Negative Reputation Impact
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The radiation dose rate in the air within Fukushima City has decreased to less than 1/20 of that immediately after the accident.
Source: Eliminating Negative Reputation Impact
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The air dose rates in the major cities in Fukushima Prefecture have fallen to levels similar to those in major cities in Japan and overseas.
