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About test result of radioactive material of food that we carried out in Yokohama-shi

Last Updated December 20, 2024

About radioactive material test result of food that we carried out in 2024

Test results of agricultural, livestock and marine products in the city
Type of food Results Details (Excel) Results Details (PDF) Total number of specimens tested

Exceeding the standard value
Number of specimens

Agricultural products Test results (Excel: 11KB) Test results (PDF: 48KB)

9 Samples

0 Samples
Marine products Test results (Excel: 13KB) Test results (PDF: 113KB) 48 specimens 0 Samples
Livestock products Test results (Excel: 11KB) Test results (PDF: 47KB) 3 Samples 0 Samples

We publish test result of radioactive material of agriculture, livestock marine products and distribution food from the city that we carried out in 2024.
For more information about the results, see the results for each type of food.

Inspection results of distributed foods at the Central Wholesale Market
Type of food Results Details (Excel) Results Details (PDF) Total number of specimens tested

Exceeding the standard value
Number of specimens

Agricultural products Test results (Excel: 15KB) Test results (PDF: 111KB) 21 Samples 0 Samples
Marine products Test results (Excel: 22KB) Test results (PDF: 139KB)

74 specimens

0 Samples

Inspection results of foods distributed in the city
Type of food Results Details (Excel) Results Details (PDF) Total number of specimens tested

Exceeding the standard value
Number of specimens

Mass retailers, etc.
Sales Foods

Test results (Excel: 15KB) Test results (PDF: 63KB)

19 specimens

0 Samples

Internet
Mail-order Foods

Test results (Excel: 13KB) Test results (PDF: 54KB) 8 Samples 0 Samples

Inspection results that Motoichi carried out in the past

As we publish test result from 2011 to 2023 that Motoichi carried out every year, please see.

Standard values for radioactive substances (radioactive cesium) in foods under the Food Sanitation Law

For radioactive materials, standard values are set by the Food Sanitation Law as radioactive cesium.
For regulated nuclides, it is said that nuclides with a relatively long half-life and long-term effects should be considered. Cesium, strontium, lutenium, and plutonium, which are nuclides with a half-life of more than one year, are regulated. In addition, for nuclides other than cesium, the ratio with cesium is calculated to ensure that the additional internal exposure dose is not exceeded by 1 millisievert per year.
When setting the standard value, the age group, gender, etc. are subdivided, and it is set to be below the strictest value, and there is a possibility that the age group with a high intake of food and the sensitivity to radiation is high. It is carefully considered for children and infants.
Please refer to the Ministry of Health, Labour and Welfare website (outside site) for materials for setting standard values.

Standard values for radioactive substances (radioactive cesium) in food

Classification of food

Standard value

Foods for baby/infant

50Bq/kg

Drinking water

10Bq/kg

Milk

50Bq/kg

General food products

100Bq/kg

What is the detection limit?
The minimum concentration that can be detected is calculated automatically, depending on the target item, the accuracy of the measuring device, the measurement time, etc.

Basic knowledge about radioactive materials

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Inquiries to this page

Food and Hygiene Division, Medical Care Bureau Health and Safety Department

Telephone: 045-671-2460

Telephone: 045-671-2460

Fax: 045-550-3587

Email address: ir-syokuhineisei@city.yokohama.lg.jp

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Page ID: 140-889-206

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