noun
air dose rate; ambient dose rate
Technical term used in radiation monitoring, especially for environmental radioactivity. Refers to the radiation dose per unit time in air at a given location.
福島県では空間線量率の測定が続けられている。
Measurements of the air dose rate are continuing in Fukushima Prefecture.
空間線量率が高い地域では除染が行われた。
Decontamination was carried out in areas with high air dose rates.
Compound of 空間 (space, air), 線量 (radiation dose), and 率 (rate).