Results of local measurements of radiation levels in the air at children's centers and after-school clubs (Updated February 1, 2017)

We have measured the air radiation dose in the children's center and after-school club facilities 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)).

Note: The Daini Elementary School After-School Club shares the entrance and exit with Inagi Daini Elementary School, so please refer to " Results of Local Air Radiation Measurement Results for Municipal Elementary and Junior High Schools ."

【explanation】
0.23 microsieverts per hour is converted to 0.99864 millisieverts per year, which is below the normal radiation dose recommended by the International Commission on Radiological Protection (ICRP) for the general public (1 millisievert per year or less (excluding natural radiation, etc.)). Therefore, this value is used as the city's standard value .
The Ministry of the Environment's "Decontamination Guidelines" state that if the radiation level one meter above the ground is below 0.23 microsieverts per hour, no further action should be taken. However, the city is taking a more cautious approach and is deciding on its response based on the results of measurements taken at the closest point to the object (one centimeter above the ground).

• Measurer city employee
  

• measuring equipment
  PA-1000

• Measuring method
  Average of 5 repeated measurements every 60 seconds