Measurement of Radiation Dose for Air in the Ports (the Pacific side of Northeast Japan) http://www.mlit.go.jp/kowan/kowan_fr1_000041.html Annual exposure Measurement points H29.1.12 H29.1.19 H29.1.26 calculation Distance from Fukushima Daiichi Nuclear Power Station ① Port of Tokyo Oi Wharf 0.03 μSv/h 0.05 μSv/h 0.05 μSv/h = 0.00005 mSv/h 0.44 mSv
Port of Honmoku Wharf ② 0.04 μSv/h 0.04 μSv/h 0.04 μSv/h = 0.00004 mSv/h 0.35 mSv Yokohama (BC gate) Kawasaki Environment Synthesis ③ Port of Kawasaki Laboratory 0.02 μSv/h 0.02 μSv/h 0.02 μSv/h = 0.00002 mSv/h 0.18 mSv ⑩ <4km from the port> (AM8:00) (AM8:00) (AM8:00) Chiba Prefectural Port of Chiba Environmental Research Center μSv/h μSv/h μSv/h = 0.00003 mSv/h mSv ④ 0.03 (AM8:00) 0.03 0.03 0.26 <9km from the port> (AM8:00) (AM8:00)
⑤ Port of Kashima Bureau of Port of Kashima - μSv/h - μSv/h - μSv/h = - mSv/h - mSv (AM8:00) (AM8:00) (AM8:00)
⑥ Port of Onahama Fujiwara Wharf - μSv/h - μSv/h - μSv/h = - mSv/h - mSv ⑨ (AM) (AM) (AM) ⑧ ⑦ Port of Souma No.2 Wharf - μSv/h - μSv/h - μSv/h = - mSv/h - mSv (AM) (AM) (AM) ⑦
Port of Sendai- μSv/h μSv/h μSv/h = - mSv/h mSv Fukushima Daiichi ⑧ shiogama Takasago Container Terminal - - - - Nuclear Power Station 100km ⑥ Port of μSv/h - μSv/h μSv/h = - mSv/h mSv ⑨ Ishinomaki Nakajima Wharf - - - 150km Research Institute for Environmental Sciences ⑩ Port of Kuji 0.02 μSv/h 0.02 μSv/h 0.02 μSv/h = 0.00002 mSv/h 0.18 mSv and Public Health (AM) (AM) (AM) 200km ⑤ ① ①Source: Bureau of Port and Harbor Tokyo Metropolitan Government ③ ④ http://www.kouwan.metro.tokyo.jp/jishin_kouwankyoku_oshirase/measurement/> ② ⑧⑨Source: Miyagi Prefecture ②Source: Yokohama Port Corporation
⑤Source: Ibaraki Prefecture
⑥⑦Source: Fukushima Prefecture
http://www.mlit.go.jp/kowan/kowan_fr1_000041.html Iodine Cesium Cesium Date Distance from Fukushima Measurement Points I-131 Cs-134 Cs-137 Daiichi Nuclear Power Station Uraga Channel ND ND ND ① Tokyo bay H29.2.1 (ND = Less Than 5Bq/kg) (less than 5Bq/kg) (less than 5Bq/kg) (less than 5Bq/kg) ⑪ ② Mid point between Oi Terminal and Port of Tokyo Aomi Terminal (ND = Less Than 2-3Bq/kg) H29.1.26 ND ND ND Port of Yokohama Passage/ ND ND ND ③ Tsurumi Passage (ND = Less Than 1Bq/kg) H29.1.30 Yokohama (less than 20Bq/kg) (less than 20Bq/kg) (less than 20Bq/kg) Kawasaki Passage ④ Port of Kawasaki H29.1.26 ND ND ND (ND = Less Than 1Bq/kg) Chiba Passage ⑤ Port of Chiba H29.1.30 ND ND ND (ND = Less Than 1Bq/kg) 3km off the coast of Hirai ⑥ Port of Kashima H28.12.8 - ND ND (ND = Less Than 1-2Bq/kg) ⑩ 1) No.4 Wharf (ND = Less Than 1Bq/kg) 1) ND ND ND ⑦ Port of Onahama H29.1.31 ⑨ 2) Otsurugi Wharf (ND = Less Than 1Bq/kg) 2) ND ND ND No.2 Wharf ⑧ ⑧ Port of Souma H29.1.30 ND ND ND (ND = Less Than 1Bq/kg) Fukushima Daiichi Port of Takasago Container Terminal Nuclear Power Station ⑨ H29.12.21 ND ND ND Sendaishiogama (ND = Less Than 1Bq/kg) 100km ⑦ Port of Nakajima Wharf ⑩ H29.12.21 ND ND ND Ishinomaki (ND = Less Than 1Bq/kg) 150km Port of Hattaro Area (in the port) ⑪ H29.1.23 ND ND ND Hachinohe (ND = Less Than 1-2Bq/kg) (less than 1.6Bq/L) (less than 1.1Bq/kg) (less than 1.0Bq/L) 200km ⑥ ND=Not Detected、LTD=Less Than Detectable ①Source: Kanto Regional Development Bureau, MLIT ② ④
④Source: Kawasaki City
⑤Source: Chiba Prefecture
⑥Source: Ibaraki Prefecture