Local measurement results of air radiation dose in the school lunch communal kitchen (updated on January 1, 2017)
Update date: January 1, 2017
We have measured the air radiation dose in the school lunch communal kitchen 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 (implemented in FY2016)
| Name of facility | measuring date | weather | Measurement location | Measured value (unit: microsievert per hour) |
|---|---|---|---|---|
| 1 cm above ground | ||||
| School lunch communal kitchen No. 1 kitchen | 2016 August 31st |
sunny | Beside the kitchen entrance gate | 0.077 |
| School lunch exit (1) | 0.066 | |||
| School lunch exit (2) | 0.082 | |||
| Kitchen west side drain | 0.067 | |||
| Food delivery entrance | 0.084 | |||
| South side of the kitchen next to the waterway | 0.062 | |||
| School lunch communal kitchen second kitchen | 2016 August 13th |
sunny | Beside the entrance | 0.075 |
| Truck loading/unloading entrance | 0.065 | |||
| Container loading/unloading entrance | 0.065 | |||
| On the front (road) side grating | 0.074 | |||
| On the back (elementary school) side grating | 0.080 |
【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
School lunch communal kitchen (PDF: 60KB)
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Inquiries about this page
Inagi City Education Department School Lunch Division
(1st) 1023 Higashinagumanuma, Inagi City, Tokyo (2nd) 4-4 Wakabadai, Inagi City, Tokyo
Telephone: (1st) 042-377-8904 (2nd) 042-331-7103 Fax: (1st) 042-379-1501 (2nd) 042-331-7109
