Inagi City

Local measurement results of air radiation dose in sports facilities (updated on January 15, 2017)

Last 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 (implemented in FY2016)

Name of facility measuring date weather Measurement location Measured value (unit: microsievert per hour)
1 cm above ground
Tamagawa Green Park Baseball Stadium December 12th Sunny A side back net back 0.041
In front of the bench on the third base side of side A 0.046
A side second base rear 0.033
A side sand storage area 0.047
B side first base side sand storage area 0.033
B side second base rear 0.043
Tamagawa Green Park Softball Field December 12th Sunny A side back net back 0.061
Side A, near the first base bench 0.043
A side second base rear 0.039
B side second base rear 0.040
B-side Mound 0.028
B side back net rear 0.038
Tamagawa Ryokuchi Park Multipurpose Square December 12th Sunny Sand storage area 0.057
Near the downstream goal 0.052
Near the upstream goal 0.048
Tamagawa Ryokuchi Park Gateball Field December 12th Sunny downstream side 0.062
upstream side 0.074
Wakabadai Park Multipurpose Square December 13 cloudy Left side gutter 0.065
Light side gutter 0.047
Wakabadai Park Tennis Court December 13 cloudy southeast corner 0.063
center 0.067
south central 0.050
Inagi Nagamine Sports Square December 13 cloudy South corner of soccer field 0.044
Soccer field north corner 0.043
Futsal field center 0.056
Parking lot southeast corner 0.042
Administration building south side 0.032
Lawn square center 0.031
Friend Hirao Gymnasium December 13 cloudy Northwest corner of the gymnasium 0.051
Gymnasium south corner 0.056
Southeast corner of the gymnasium 0.052
Friend Hirao Ground December 13 cloudy Southeast corner of the ground 0.059
Northeast corner of the ground 0.044
ground north corner 0.050
Minamitama Sports Square Soccer Field December 15 cloudy West tennis court side 0.038
Nishikawa side corner 0.044
Above the manhole near the sandbox 0.036
Minamitama Sports Square Tennis Court December 15 cloudy northwest corner 0.058
center 0.046
Daimaru Park Tennis Court December 16th Sunny northeast corner 0.074
B side entrance 0.066
Shiroyama Park Tennis Court December 16th Sunny southeast corner 0.072
northwest corner 0.067
Inagi Central Park Baseball Stadium December 16th Sunny Near the backstop 0.068
under left pole 0.046
Inagi Central Park General Ground December 16th Sunny stand 0.059
Field northwest drainage ditch 0.039
center 0.037
Field southeast drainage ditch 0.036
Inagi Central Park General Gymnasium December 16th Sunny 1st floor front entrance 0.089
central courtyard 0.050
Kita-Ryokuchi Park Tennis Court December 15 cloudy AB side west side 0.066
AB side east side 0.064
CD side west road side 0.064
EF side east road side 0.067
EF side Higashikawa side 0.059
DE side central river side 0.062
Daimaru Park multipurpose plaza December 15 cloudy A side back net back 0.042
East side of outfield net fence on side B 0.046
Square east side net fence 0.048

【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

Past measurement results

Inquiries about this page

Inagi City Education Department Physical Education Division Telephone: 042-378-2111