Space radiation dose local measurement result of welfare center (August 15, 2016 update)
Updated: August 15, 2016
We have measured the air radiation dose within the welfare center facility based on the city's air radiation dose 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 | ||||
| Welfare center | 2016 June 15th |
rain | Rain gutter (2nd floor rooftop) | 0.060 |
| Gutter (next to the storeroom on the 1st floor) | 0.072 | |||
| Rain gutters (next to the emergency exit on the 1st floor) | 0.092 | |||
| in front of the entrance | 0.090 | |||
| Rain gutter (in front of bicycle parking lot) | 0.104 |
【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
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Inquiries about this page
Inagi City Welfare Department Life Welfare Division
2111 Higashi Naganuma, Inagi City, Tokyo
Phone: 042-378-2111 Fax: 042-377-4781
