Local measurement results of air radiation dose at district halls, etc. (updated on March 15, 2017)
Update date: March 15, 2017
We have measured spatial radiation levels at local community centers and other locations in accordance with the city's spatial radiation measurement policy, and we will be making the results public.
Furthermore, this measurement did not reveal any areas requiring cleaning or other measures (areas exceeding the 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 | ||||
| Daimaru District Hall | February 2 | sunny | In front of the entrance | 0.089 |
| In front of the toilet | 0.060 | |||
| Bicycle parking | 0.059 | |||
| East side of the hall | 0.065 | |||
| In front of the park bench | 0.042 | |||
| South side of the park | 0.058 | |||
| Center of the park | 0.048 | |||
| Oshidate Fureai Hall | February 2 | sunny | In front of the entrance | 0.080 |
| South side pier of the hall | 0.080 | |||
| Hall south side | 0.065 | |||
| West side of the hall | 0.070 | |||
| Matsuba meeting hall | February 2 | sunny | In front of the entrance | 0.072 |
| South side of entrance | 0.072 | |||
| Rainwater basin on the west side of the meeting hall | 0.070 | |||
| West side of the park | 0.057 | |||
| Center of the park | 0.060 | |||
| South side of Matsuba Fureaikan | 0.074 |
【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
District halls, etc. (PDF: 69KB)
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Inquiries about this page
Inagi City General Affairs Department General Affairs Contract Division
2111 Higashi-Naganuma, Inagi-shi, Tokyo
Phone: 042-378-2111 Fax: 042-377-4781
