Local Measurement Results of Space Radiation Levels at the School Lunch Joint Cooking Facility (Updated January 1, 2017)

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Page ID 1002361 Update Date Reiwa 6, December 16

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Measurements of ambient radiation levels were conducted in the School Lunch joint cooking facility based on the city's policy for measuring ambient radiation levels. The results are hereby announced.
Furthermore, there were no areas identified in this measurement that require cleaning or other actions (areas exceeding the judgment criterion of 0.23 microsieverts per hour).

Measurement Results (Conducted in Fiscal Year 2016)

School Lunch Joint Cooking Facility First Cooking Facility (Measurement Date: August 31, 2016, Weather: Clear)

Measurement Location Measurement Values
(Unit: MicroSieverts per hour)
1 Centimeter Above Ground
Next to the kitchen entrance 0.077
School Lunch Delivery Exit (1) 0.066
School Lunch Delivery Exit (2) 0.082
Drainage Outlet on the West Side of the Kitchen 0.067
Food Ingredient Entrance 0.084
South side of the kitchen waterway 0.062

School Lunch Joint Cooking Facility Second Cooking Facility (Measurement Date: August 13, 2016, Weather: Clear)

Measurement Location Measurement Values
(Unit: MicroSieverts per hour)
1 Centimeter Above Ground
Beside the Entrance 0.075
Truck Loading Entrance 0.065
Container Exit Entrance 0.065
On the grating side of the road 0.074
On the back (elementary school) side grating 0.080

Description

When converted to an annual basis, 0.23 microsieverts per hour amounts to 0.99864 millisieverts, which is below the standard for normal radiation exposure for the general public (less than 1 millisievert per year, excluding natural background radiation) as recommended by the International Commission on Radiological Protection (ICRP). Therefore, this value is used as the city's judgment criterion.
According to the Ministry of the Environment's "Decontamination Guidelines," if the radiation level at 1 meter above the ground is below 0.23 microsieverts per hour, no further action is required. However, our city takes a more cautious approach and makes decisions based on measurement results taken at the closest point to the object (1 centimeter above the ground).

Measurement Overview

Measurer

City Employee

Measuring Equipment

PA-1000

Measurement Method

Average of 5 repeated measurements every 60 seconds

Past Measurement Results

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Inquiries about this page

Inagi City Urban Environment Management Department Living Environment Division
〒206-8601 2111 Higashi-Naganuma, Inagi City, Tokyo
Phone number: 042-378-2111 Fax number: 042-377-4781
Contact Inagi City Urban Environment Management Department Living Environment Division