jueves, 7 de abril de 2011

Estado de los aeropuertos en Japón / informe aerop afectados por la radiación



(1)Major Airports



(2)Airports in the Tohoku Region (Eastern Half of the Japanese Main Island)



As shown below, radiation at a level that has harmful effects on human health has not been detected at any of the airports in Japan.
For your reference, according to the World Health Organization (WHO), an average person is exposed to 3,000μSv of radiation dose (2,400μSv from natural environment and 600μSv from medical equipments) each year.




Distance from Fukushima Dai-ichi Nuclear Power Station Measurement Point
(nearest to each airport)
Hourly Radiation Dose
(μGy/h=μSv/h)
Estimated Annual Exposure (μSv) Original Website of the Measurement Data
KmMile
1. Narita (Tokyo) 193 120Within the Airport Premises 0.126 1,104 Narita International Airport Corporation
2. Haneda (Tokyo) 236 147Kawasaki City,
Kanagawa Pref.
(Ukishima)
0.096 841 Kanagawa Pref.
(Japanese Only)
3. Kansai (Osaka) 619 334Izumisano City,
Osaka Pref.
(Hineno High-school)
0.040 350 Osaka Pref.
(Japanese Only)
4. Central Japan
/Centrair(Nagoya)
475 256 Nagoya City,
Aichi Pref.
0.042 368 Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
5. New Chitose (Sapporo) 598 374 Sapporo City,
Hokkaido Pref.
0.028 245 MEXT
6.Sendai 80 50Sendai City,
Miyagi Pref.
0.081710
7.Hiroshima 802 498 Hiroshima City,
Hiroshima Pref.
0.046 403 MEXT
8. Fukuoka 1048 651 Dasaifu City,
Fukuoka Pref.
0.036 315 MEXT
9.Fukushima 58 36 Tamagawa Village,
Fukushima Pref.
0.33 2,891 Fukushima Pref.
10.Ibaraki 149 92 Hokota City,
Ibaraki Pref.
(Tokushuku)
0.190 1,664 Ibaraki Pref.
(Japanese Only)


1)Click here to check the distance and radius of Narita and Haneda Airports from the Fukushima Dai-ichi Nuclear Power Station.
2)For the latest measurement of radiation doses, please refer to each original website listed above.
3)For the estimation purpose, 1 micro-Gray/hour(μGy/hr) is converted into 1 micro-Sievert/hour.(μSv/hr)
4)“Estimated Annual Exposure” is the estimation under the hypothetical condition where a person is continuously exposed to the hourly radiation dose at the measurement point for 24 hours, 365 days.
5)1 milli-Sievert (mSv) is equal to 1,000 micro-Sievert (μSv).

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