Space radiation dose local measurement result (January 15, 2017 update) of physical education facility
Updated: January 15, 2017
We have measured the air radiation dose in the sports 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)).
Since 2015, with the construction of new physical education facilities, we have added Nagamine Sports Square and are conducting new measurements.
Measurement results (conducted in 2016)
Name of facility | measuring date | weather | Measurement location | Measured value (unit: microsieverts per hour) |
---|---|---|---|---|
1 centimeter on the ground | ||||
Tamagawa Ryokuchi Park Ballpark | December 12th | fine weather | Behind the A-side back net | 0.041 |
In front of the bench on the third base side of A side | 0.046 | |||
A side second base rear | 0.033 | |||
Side A sand storage | 0.047 | |||
B side first base side sand storage area | 0.033 | |||
B-side second base rear | 0.043 | |||
Tamagawa Ryokuchi Park Softball Field | December 12th | fine weather | Behind the A-side back net | 0.061 |
Near the bench on the first base side of A side | 0.043 | |||
A side second base rear | 0.039 | |||
B-side second base rear | 0.040 | |||
B side mound | 0.028 | |||
Behind the B-side back net | 0.038 | |||
Tamagawa Ryokuchi Park Multi-Purpose Square | December 12th | fine weather | sand storage | 0.057 |
Near downstream goal | 0.052 | |||
Near upstream goal | 0.048 | |||
Tamagawa Ryokuchi Park Gateball Field | December 12th | fine weather | downstream side | 0.062 |
upstream | 0.074 | |||
Wakabadai Park Multipurpose Square | December 13th | Cloudy | Left side groove | 0.065 |
Light side gutter | 0.047 | |||
Wakabadai Park Tennis Court | December 13th | Cloudy | southeast corner | 0.063 |
center | 0.067 | |||
south central | 0.050 | |||
Inagi Nagamine Sports Square | December 13th | Cloudy | South corner of the soccer field | 0.044 |
soccer field north corner | 0.043 | |||
Futsal field center | 0.056 | |||
Southeast corner of the parking lot | 0.042 | |||
Administration building south side | 0.032 | |||
Central lawn | 0.031 | |||
Friend Hirao Gymnasium | December 13th | Cloudy | Gymnasium northwest corner | 0.051 |
South corner of the gymnasium | 0.056 | |||
Southeast corner of the gymnasium | 0.052 | |||
Friend Hirao Ground | December 13th | Cloudy | Southeast corner of the ground | 0.059 |
Northeast corner of the ground | 0.044 | |||
ground north corner | 0.050 | |||
Minamitama Sports Plaza Soccer Field | December 15th | Cloudy | West tennis court side | 0.038 |
Nishikawa side corner | 0.044 | |||
On the manhole near the sandbox | 0.036 | |||
Minamitama Sports Plaza Tennis Court | December 15th | Cloudy | northwest corner | 0.058 |
center | 0.046 | |||
Daimaru Park Tennis Court | December 16th | fine weather | northeast corner | 0.074 |
B side entrance | 0.066 | |||
Shiroyama Park Tennis Court | December 16th | fine weather | southeast corner | 0.072 |
northwest corner | 0.067 | |||
Inagi Central Park Ballpark | December 16th | fine weather | Near the back net | 0.068 |
under the left pole | 0.046 | |||
Inagi Central Park General Ground | December 16th | fine weather | stand | 0.059 |
field northwest drain | 0.039 | |||
center | 0.037 | |||
Field Southeast Ditch | 0.036 | |||
Inagi Central Park Gymnasium | December 16th | fine weather | 1st floor front entrance | 0.089 |
central courtyard | 0.050 | |||
Kita Ryokuchi Park Tennis Court | December 15th | Cloudy | AB side west side | 0.066 |
East side of AB side | 0.064 | |||
CD side west road side | 0.064 | |||
East road side of EF | 0.067 | |||
EF side Higashikawa side | 0.059 | |||
DE side Chuo River side | 0.062 | |||
Daimaru Park multi-purpose square | December 15th | Cloudy | Behind the A-side back net | 0.042 |
Side B outfield net fence east side | 0.046 | |||
Square east side net fence | 0.048 |
【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
Sports facilities (PDF: 135KB)
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Inquiries about this page
Inagi City Education Department Physical Education Division
2111 Higashi Naganuma, Inagi City, Tokyo
Phone: 042-378-2111 Fax: 042-379-3600