- Top menu|Search
  1. This place: The Child and Youth Bureau top
  2. Person in charge of child care support section preschool education
  3. The radiation dose measurement situation
  4. Person in charge of child care support section preschool education, yohoshorenkeininaitohoshasenryo*teijokyo 2

 


The radiation dose measurement situation of point that may become "microspot" in private nursery school


 

 Space radiation measures of Yokohama-shi catch the whole city limits with aspect so that there is not regional deflection, and they grasp radiation dose by measuring kindergarten, garden of nursery school sequentially.
 We investigated and, based on reporting from citizen's one, measured.



 (1)Measurement day

   Afternoon of Friday, September 30, 2011 2:30 ...

 (2)Conduct facility number and measurement spot number

   Three places of Motomachi kindergartens attached to Yokohama school

 (3)Measurement location

   In places where children may approach in facility, we measure place that is more likely to become "microspot".

 (4)Measuring equipment

   NaI (TI) scintillation detector TCS-172B (product made in Hitachi Aloka Medical Corporation)

 (5)Measurement contents

   We measure surface of the earth 1cm, space γ (gamma) dose of radioactivity of 50cm after cleaning before cleaning

 (6)Result of a measurement

   Around place where children might approach, we measured, but all were less than 0.59μSv/h used as an indication of the re-measurement.


Facility name

Measurement location

Result of a measurement (μSv/h)

It is before cleaning

After cleaning

1cm

50cm

1cm

50cm

Motomachi kindergarten attached to Yokohama school The lower part of rain pipe (eaves trough)

0.11

0.10

Stairs of the rain pipe (eaves trough) side

0.10

0.07

0.10

0.07

Wooden playground equipment

0.08

0.07

0.08

0.07




(as for the inquiry)

 

 City of Yokohama, Child and Youth Bureau child care support section

 

 Telephone 045 (671) 2084 fax 045 (663) 1925

 (reception hours: for from Monday to Friday for from 8:45 to 17:15)

 

 

 


City of Yokohama, Child and Youth Bureau | Making: December 14, 2011 | Update: March 13, 2012
It is impression e-mail opinion about this page: kd-koshien@city.yokohama.jp | Telephone: 045-671-2085 | FAX: 045-663-1925
From suggestion about Yokohama municipal administration or opinion citizen to suggestion
© 2000-2012 City of Yokohama. All rights reserved.