東京23区で最大規模を誇り、湖沼の景観が広がる都立水元公園(東京都葛飾区)。東京電力福島第一原発から200キロ以上離れるが、都内の公園では事故の影響が最も強く残る。首都圏で測定を続ける丹野心平さん(39)と森本祥江さん(58)とともに調べた。
調査は、都環境局職員の立ち会いのもと9月中旬に実施。
(略)
歩道の放射線量は、都心よりもわずかに高いかどうかというレベルだった。
しかし、いざ各地の土壌を採取して放射性セシウムの濃度を調べると、29地点のうち12地点で放射性廃棄物の基準(1キロ当たり8000ベクレル)を超えた。
濃度の高い地点は、雨水が集まりやすい少し低い場所が多かった。ただ、地形的な変化のない場所でも数千ベクレルあるのには驚かされた。濃度の割に放射線が低い地点も散見れるが、汚染土の分布が狭いためとみられる。(山川剛史)
Featured Topics / 特集
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A nuclear power plant in Byron, Illinois. Taken by photographer Joseph Pobereskin (http://pobereskin.com). カレンダー
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Latest Posts / 最新記事
- 被ばく研究の灯は消さない 国や自治体が「風化待ち」の中、独協医科大分室が移転してまで続ける活動の意義via東京新聞 2024/10/05
- Chernobyl-area land deemed safe for new agriculture via Nuclear Newswire 2024/09/26
- 長崎「体験者」の医療拡充 なぜ被爆者と認めないのか【社説】via 中国新聞 2024/09/23
- Three Mile Island nuclear plant will reopen to power Microsoft data centers via NPR 2024/09/20
- Tritium into the air? via Beyond Nuclear International 2024/09/18
Discussion / 最新の議論
- Leonsz on Combating corrosion in the world’s aging nuclear reactors via c&en
- Mark Ultra on Special Report: Help wanted in Fukushima: Low pay, high risks and gangsters via Reuters
- Grom Montenegro on Duke Energy’s shell game via Beyond Nuclear International
- Jim Rice on Trinity: “The most significant hazard of the entire Manhattan Project” via Bulletin of Atomic Scientists
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