Local measurement results of air radiation dose at complex facility Friend Hirao (updated on January 1, 2017)
Update date: January 1, 2017
We have measured the air radiation dose within the Friend Hirao complex 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 (implemented in FY2016)
| Name of facility | measuring date | weather | Measurement location | Measured value (unit: microsievert per hour) |
|---|---|---|---|---|
| 1 cm above ground | ||||
| Complex facility Friend Hirao | 2016 September 27th |
sunny | In front of the east entrance of the regular classroom building | 0.060 |
| Gymnasium entrance | 0.058 | |||
| In front of the west exit of the regular classroom building | 0.061 | |||
| playground entrance | 0.062 | |||
| South of the playground | 0.062 | |||
| West Sports Ground | 0.066 | |||
| North of the playground | 0.045 | |||
| In front of the Special Management Classroom Building | 0.061 | |||
| In front of the sports warehouse | 0.059 |
【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
Complex facility Friend Hirao (PDF: 59KB)
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Inquiries regarding this page
Inagi City Citizen Department Citizen Collaboration Division
2111 Higashi-Naganuma, Inagi City
Phone: 042-378-2111 Fax: 042-377-4781
