Local measurement results of air radiation dose at Kamiyato Ryokuchi Experience Learning Center (updated on February 1, 2017)
Update date: February 1, 2017
At Kamiyato Ryokuchi Experience Learning Center, we have measured the air radiation dose 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 | ||||
Kamiyato Ryokuchi Experience Learning Center | November 10 | cloudy | Masu (west side) | 0.061 |
Masu (east side) | 0.059 | |||
Masu (South side) | 0.064 |
【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
Kamiyato Green Space Experience Learning Center (PDF: 43KB)
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Inquiries about this page
Inagi City Urban Construction Department Civil Engineering Division
2111 Higashi-Naganuma, Inagi-shi, Tokyo
Phone: 042-378-2111 Fax: 042-377-4781