Graph of the Day: Gamma Radiation Air-reading in Tokyo, 1 March 2011 – 20 March 2012
グレイは放射線が物質に当たった時のエネルギー量を表し、大気中の放射線量１グレイは１シーベルトに換算できます。 【参考】健康安全研究センターで平常時に観測されていた測定値：１時間あたり0.028～0.079マイクロシーベルト（平均値は概ね、0.035マイクロシーベルト／時）で推移＜上記の緑色の帯の範囲＞。 Machine translation: Grey represents the amount of energy when radiation hits the material, you can convert the atmospheric radiation 1 gray dose of 1 sievert. [Wikipedia: The gray (symbol: Gy) is the SI derived unit of absorbed radiation dose of ionizing radiation (for example, X-rays), and is defined as the absorption of one joule of ionizing radiation by one kilogram of matter (usually human tissue).[1]] These measurements were observed at the Institute of Public Health: from 0.028 to 0.079 microsievert per hour (average value is around 0.035 micro sievert) <range of band of green above> remained at.
