Local measurement results of spatial radiation dose at the cultural center (updated on April 1, 2017)
Update date: April 1, 2017
We have measured the air radiation dose within the cultural 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)).
Note: For information on the attached children's hall and after-school club, please refer to " Results of local measurement of air radiation dose at children's hall and after-school club ."
Measurement results (implemented in FY2016)
| Name of facility | measuring date | weather | Measurement location | Measured value (unit: microsievert per hour) |
|---|---|---|---|---|
| 1 cm above ground | ||||
| central community center | December 28th | sunny | Lobby south side gutter | 0.062 |
| In front of the main entrance | 0.054 | |||
| Second Community Center | January 7 | sunny | West parking lot gutter | 0.088 |
| In front of the main entrance on the southwest side | 0.088 | |||
| In front of the northeast library entrance | 0.082 | |||
| North side rainwater tank | 0.061 | |||
| Third community center | January 19th | sunny | Grating under slope | 0.076 |
| Courtyard rainwater tank | 0.073 | |||
| In front of the main entrance | 0.090 | |||
| In front of Third Library entrance | 0.067 | |||
| Fourth community center | January 13th | sunny | In front of the entrance | 0.088 |
| Shiroyama Community Center | January 20th | sunny | Near the entrance | 0.090 |
【explanation】
The annual equivalent of 0.23 microsieverts per hour is 0.99864 millisieverts, which is an indicator of the normal radiation dose received by the general public (less than 1 millisievert per year (natural radiation dose, etc.), as recommended by the International Commission on Radiological Protection (ICRP). )), this value is the city's criterion value .
According to the Ministry of the Environment's "Decontamination-related Guidelines," if the radiation dose at 1 meter of the ground surface is below 0.23 microsieverts per hour, no further action will be taken, but the city is on the safer side. We make decisions based on measurements taken at the closest location to the object (1 centimeter above the ground) while standing.
Measurement overview
- Measurer city employee
- measuring equipment
PA-1000
- Measuring method
Average of 5 repeated measurements every 60 seconds
Past measurement results
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Inquiries about this page
Inagi City Education Department Lifelong Learning Division
2111 Higashi-Naganuma, Inagi-shi, Tokyo
Phone: 042-377-2121 Fax: 042-379-0491
