Spatial radiation dose local measurement result of school lunch joint kitchen (January 1, 2017 update)
Updated: 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 (conducted in 2016)
| Name of facility | measuring date | weather | Measurement location | Measured value (unit: microsieverts per hour) |
|---|---|---|---|---|
| 1 centimeter on the ground | ||||
| School lunch joint kitchen No. 1 kitchen | 2016 August 31st |
sunny | Kitchen entrance gate | 0.077 |
| School lunch outlet (1) | 0.066 | |||
| Lunch outlet (2) | 0.082 | |||
| Kitchen west drain | 0.067 | |||
| Ingredients loading port | 0.084 | |||
| On the south side of the kitchen, next to the waterway | 0.062 | |||
| School lunch joint kitchen No. 2 kitchen | 2016 August 13th |
sunny | Beside the entrance | 0.075 |
| Truck loading/unloading entrance | 0.065 | |||
| Container loading/unloading entrance | 0.065 | |||
| On front (road) side grating | 0.074 | |||
| On the back (elementary school) side grating | 0.080 |
【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
School lunch joint kitchen (PDF: 60KB)
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Inquiries about this page
Inagi City Education Department School Lunch Division
(1st) 1023 Higashi Naganuma, Inagi City, Tokyo (2nd) 4-4 Wakabadai, Inagi City, Tokyo
Phone: (First) 042-377-8904 (Second) 042-331-7103 Fax: (First) 042-379-1501 (Second) 042-331-7109
