Spatial radiation dose local measurement results at Central Library and Shiroyama Experience Learning Center (updated on August 15, 2016)
Updated: August 15, 2016
We have measured the air radiation dose within the Central Library/Shiroyama Experience Learning Center facility based on the city's air radiation dose measurement response policy, and we would like to announce the results.
In addition, during this measurement, there were no locations that required cleaning, etc. (locations that exceeded the judgment standard value (0.23 microsieverts per hour)).
Measurement results (conducted in 2016)
| Name of facility | measuring date | weather | Measurement location | Measured value (unit: microsieverts per hour) |
|---|---|---|---|---|
| 1 centimeter on the ground | ||||
| Central Library Shiroyama Experience Learning Center | 2016 June 29th |
cloudy | front door | 0.054 |
| In front of the bicycle parking lot | 0.054 | |||
| pond | 0.050 | |||
| field | 0.055 | |||
| Square | 0.083 |
【explanation】
When converted from 0.23 microsieverts per hour to 0.99864 millisieverts per year, it is lower than the radiation dose index (1 millisievert or less per year (excluding natural radiation dose, etc.)) recommended by the International Commission on Radiological Protection (ICRP) for ordinary people to receive.
According to the Ministry of the Environment's "Decontamination Guidelines", if the radiation dose at 1 meter above the ground is below 0.23 microsieverts per hour, no further action will be taken.
Measurement overview
- Measurer city employee
- Measuring equipment
PA-1000
- Measuring method
Average of 5 repeated measurements every 60 seconds
Past measurement results
Central library, Shiroyama experience learning building (PDF: 47KB)
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Inquiries about this page
Inagi City Education Department Library Division
4-6-18 Koyodai, Inagi City, Tokyo (Municipal Central Library in Shiroyama Park)
Telephone: 042-378-7111 Fax: 042-378-7162
