Local radiation measurement results at the fire brigade substation and community disaster prevention center (Updated March 15, 2017)

Measurements of ambient radiation levels were conducted in accordance with the city's policy for measuring ambient radiation levels at the fire department substation and community disaster prevention center. The results are hereby announced.
Additionally, 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)

• Measurement Date: February 21, 2017
• Weather: Sunny

Facility Name	Measurement Location	Measurement Values (Unit: MicroSieverts per hour) 1 Centimeter Above Ground
First Division Fire Station Yanokuchi Community Disaster Prevention Center	Next to the Community Disaster Prevention Center Entrance	0.094
Second Division Station	Planting in front of the guardhouse entrance	0.062
Third Division Fire Station	Right side of the garage entrance	0.092
Fourth Division Station Momura Community Disaster Prevention Center	Left side of the disaster prevention warehouse entrance	0.088
Fifth Division Fire Station Sakahama Community Disaster Prevention Center	Community Disaster Prevention Center Entrance Planting	0.067
Sixth Division Station	Planting on the left side of the garage entrance	0.059
Seventh Division Station	Washing area on the right side of the garage entrance	0.086
Eighth Division Station Nagamine Community Disaster Prevention Center	Community Disaster Prevention Center Entrance Planting	0.093

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).

• Local Radiation Measurement Results of Public Facilities in the City

Measurement Overview

Measurer

City Employee

Measuring Equipment

PA-1000

Measurement Method

Average of 5 repeated measurements every 60 seconds

Past Measurement Results

• Fire Brigade Station / Community Disaster Prevention Center (PDF 64.5KB)