- Yokohama-shi Top Page
- Living and Procedures
- Community Development and Environment
- Roads
- Road disaster prevention related
- About radiation dose measurement
- Continuation measurement of roads around facilities (FY2013/FY2012)
Here's the text.
Continuation measurement of roads around facilities (FY2013/FY2012)
Last Updated March 5, 2019
Measurement contents
Of the roads around facilities such as parks, elementary schools, junior high schools, kindergartens and nursery schools that were measured between January 10, 2012 and March 26, 183 elementary schools, September 2012, 2012, Continuous measurements were taken in February, March and September 2013.
General spatial radiation dose
On roads around facilities such as elementary schools, spatial gamma doses of 50 cm and 1 meter on the surface of the ground were measured at 1-2 representative places.
Radiation dose at locations that may become microspots
On roads around facilities such as elementary schools, gamma doses of 1 cm, 50 cm and 1 meter were measured at places that could become the measured micro spots.
Announcement of measurement results
We announced measurement result every ward.
Continuous measurement results are displayed so that the measurement results can be compared.
In addition, the total was divided into general spatial radiation doses on roads around the facility and radiation doses at locations that may become microspots.
About measuring instruments
The measuring instruments used in the measurement are as follows.
Mr. Gamma A2700 type (manufactured by Clear Pulse)
Detector CSI (TI) scintillation detector
| Surface height | Estimated response |
|---|---|
| 1 meter | 0.23 microsieverts/hour or more as a guide |
| (50 cm) | (0.23 microsieverts/hour or more as a guide) (Measured at 1 meter if it is more than 0.23 microsieverts / hour) |
| 1 centimeter | 0.59 microsieverts/hour or more as a guide |
If you have any requests for measurement of facilities managed by Public Works Office, please contact Public Works Office in each district.
Public Works Office List page
We can read radiation-related information of Motoichi on the next page.
Radiation-related Information Page
"Places where radiation doses higher than the surrounding area were measured (so-called microspots" can be viewed on the next page.
Page of Health and Social Welfare Bureau Health and Safety Division
You may need a separate PDF reader to open a PDF file.
If you do not have it, you can download it free of charge from Adobe.
To download Adobe Acrobat Reader DC
Inquiries to this page
Road and Highway Bureau Road Department Maintenance Division
Telephone: 045-671-2782
Telephone: 045-671-2782
Fax: 045-662-1051
Email address: do-iji@city.yokohama.lg.jp
Page ID: 539-464-369
