Inagi City

Local measurement results of air radiation dose at infant child care facilities (updated on January 1, 2017)

Last updated: January 1, 2017

We have measured the air radiation dose within the infant childcare 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 FY2015, we have been measuring at Shiroyama Nursery School Minamiyama, Hongo Yuushi Nursery School (formerly Daini Nursery School), and a certified children's school (Children's Forest Child Care Center).

Measurement results (implemented in FY2016)

Name of facility measuring date weather Measurement location Measured value (unit: microsievert per hour)
1 cm above ground
Third nursery school 2016
Aug. 1		 cloudy East end of terrace 0.062
toddler sandbox 0.037
baby sandbox 0.038
south side tree 0.036
Next to the leaf mold storage area 0.038
Fourth nursery school 2016
August 3		 sunny In front of tire play equipment 0.062
In front of the new warehouse 0.065
0 year old terrace corner 0.067
In front of the toy warehouse 0.064
In front of the hall terrace 0.066
Fifth nursery school 2015
August 5		 sunny Slope entrance drain 0.052
Under the cherry blossom tree in the garden 0.044
sandbox 0.032
2F terrace drain 0.057
2F west side rain gutter bottom 0.068
The sixth nursery school 2016
July 6		 cloudy Next to the garden field 0.063
In front of the terrace between the new school building and the main school building 0.068
In front of the terrace for 0-year-old children 0.065
Garden playground equipment 0.064
In front of the new building entrance 0.090
Hirao Nursery School 2016
July 12		 cloudy Gutter in front of shed 0.067
0 year old child front flow mass 0.076
Drain pipe 0.062
Under the drain pipe 0.062
Flowing trout 0.072
Matsuba Nursery School 2016
July 5th		 cloudy field 0.059
sandbox 0.049
Side entrance 0.049
Koyodai Nursery School 2016
July 4th		 sunny Firewood storage area 0.056
sandbox 0.046
In front of the log house 0.044
Field near the entrance 0.058
Fields next to the school building 0.062
Shiroyama nursery school 2016
July 4th		 sunny toddler sandbox 0.045
baby sandbox 0.053
Drain in front of entrance 0.067
bicycle parking lot drain 0.083
garden rockery 0.052
Mominoki Nursery School Nagamine 2016
July 15th		 cloudy Next to the gate 0.099
sandbox 0.067
In front of 3 year old class 0.082
slope 0.057
2F balcony 0.098
Wakabadai Baobab Nursery School 2016
July 15th		 cloudy Under the west slope 0.052
garden gutter 0.060
Central garden 0.049
East side of the garden 0.061
field 0.053
Mominoki Nursery School Wakabadai 2016
July 15th		 cloudy baby sandbox 0.057
tunnel under outside stairs 0.074
garden gutter 0.064
toddler sandbox 0.056
Under the hut 0.058
Nakajima Yushi Nursery School 2016
July 5th		 cloudy Tsukiyama 0.037
Drinking fountains 0.087
sandbox 0.038
field 0.072
In front of the flower bed 0.070
Shiroyama Nursery School Minamiyama 2016
July 8th		 sunny sandbox 1 0.057
sandbox 2 0.040
2nd floor drain 0.033
3rd floor drain 0.026
Hongo Yushi Nursery School 2016
July 5th		 cloudy In front of the biotope 0.089
In front of the flower bed 0.078
sandbox 0.051
under the stairs 0.057
Next to the parking lot 0.094
Pinocchio Kindergarten Inagi 2016
July 19th		 sunny emergency exit entrance 0.092
Nursery school entrance 0.108
Near the planter in front of the nursery school 0.074
Station Square (Lawn) 0.057
Station square (concrete) 0.047
Inagi mica nursery school 2016
July 14th		 sunny front door 0.090
Next to the apartment 0.086
In front of the staff entrance 0.091
Kitchen entrance/exit 0.098
buggy storage 0.097
Ask Yanokuchi Nursery School 2016
July 19th		 sunny Emergency exit on the 0 year old room side 0.067
In front of the entrance 0.070
flower bed 0.069
infant evacuation exit 0.098
Rough Crew Wakabadai Nursery School 2016
July 15th		 cloudy Entrance 0.073
Mary Poppins Inagi Room 2016
July 19th		 sunny east corner 0.086
Entrance east side 0.068
West side of entrance 0.075
West corner 0.078
West emergency exit 0.071
Nursery room Felice Inagi Naganumaen 2016
July 14th		 sunny In front of the 1 year old terrace 0.093
Next to the sandbox 0.079
In front of the entrance 0.051
Keio Kids Platz Yomiuriland 2016
July 19th		 sunny Drain on the left side of the entrance 0.056
Drainage ditch on the right side of the entrance 0.059
down the slope 0.079
Center of the square 0.057
Front plaza entrance 0.072
Family welfare worker (Kouyodai) 2016
July 4th		 sunny In front of the entrance 0.068
Family welfare worker (north side of Yanoguchi station) 2016
July 6		 cloudy In front of the entrance 0.064
Family Welfare Worker (Wakabadai) 2016
July 14th		 sunny In front of home entrance 0.071
water playground 0.098
Munashita Park Sandbox 0.060
Family welfare worker (south side of Yanoguchi Station) 2016
July 6		 cloudy under the stairs 0.088
In front of the balcony 0.071
Certified nursery school (Children's Forest Child Care Center) 2016
July 8th		 sunny Central garden 0.077
Beside the parking lot 0.060

【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).

Measurement overview

　　PA-1000

Past measurement results

Inquiries about this page

Inagi City Welfare Department Childcare Support Division
Phone: 042-378-2111