{"id":7938,"date":"2025-04-27T13:37:12","date_gmt":"2025-04-27T04:37:12","guid":{"rendered":"https:\/\/www.envraddb.go.jp\/entesttest\/?page_id=7938"},"modified":"2025-12-05T15:47:35","modified_gmt":"2025-12-05T06:47:35","slug":"radiation-from-food","status":"publish","type":"page","link":"https:\/\/www.envraddb.go.jp\/en\/special\/radiation-from-food\/","title":{"rendered":"Committed Effective Dose by Food Category"},"content":{"rendered":"
\r\n
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\r\n\t\t\t
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Committed Effective Dose by Food Category<\/h2>\r\n\t\t\t<\/div>\r\n\t\t\t
\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n
Type<\/td>\r\n Natural radionuclides<\/td>\r\n Artificial radionuclides<\/td>\r\n <\/tr>\r\n
\r\n
\r\n \"Vegetable\"\r\n

Vegetable<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.029<\/p>\r\n <\/td>\r\n

\r\n

0.00049<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Fruit\"\r\n

Fruit<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0017<\/p>\r\n <\/td>\r\n

\r\n

0.00011<\/p>\r\n <\/td>\r\n \r\n <\/tr>\r\n

\r\n
\r\n \"Bread,\r\n

Bread, noodles<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0043<\/p>\r\n <\/td>\r\n

\r\n

0.000063<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Rice,\r\n

Rice, wheat<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.010<\/p>\r\n <\/td>\r\n

\r\n

0.00017<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Beans,\r\n

Beans, peas,
sesame seeds<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0066<\/p>\r\n <\/td>\r\n

\r\n

0.00058<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Meats\"\r\n

Meats<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0071<\/p>\r\n <\/td>\r\n

\r\n

0.000052<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Seafood\"\r\n

Seafood<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.58<\/p>\r\n <\/td>\r\n

\r\n

0.00053<\/p>\r\n <\/td>\r\n \r\n <\/tr>\r\n

\r\n
\r\n \"Seaweed\"\r\n

Seaweed<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.019<\/p>\r\n <\/td>\r\n

\r\n

0.000041<\/p>\r\n <\/td>\r\n \r\n <\/tr>\r\n <\/tbody>\r\n <\/table>\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n
Type<\/td>\r\n Natural radionuclides<\/td>\r\n Artificial radionuclides<\/td>\r\n <\/tr>\r\n
\r\n
\r\n \"Mushroom\"\r\n

Mushroom<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0038<\/p>\r\n <\/td>\r\n

\r\n

0.00046<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Potatoes\"\r\n

Potatoes<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0028<\/p>\r\n <\/td>\r\n

\r\n

0.000052<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Egg\"\r\n

Egg<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0028<\/p>\r\n <\/td>\r\n

\r\n

0.0000062<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Milk,\r\n

Milk,
dairy products<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0048<\/p>\r\n <\/td>\r\n

\r\n

0.00014<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Confectionaries\"\r\n

Confectionaries<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.0014<\/p>\r\n <\/td>\r\n

\r\n

0.000071<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Drinks\"\r\n

Drinks<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.072<\/p>\r\n <\/td>\r\n

\r\n

0.0011<\/p>\r\n <\/td>\r\n <\/tr>\r\n

\r\n
\r\n \"Condiments,\r\n

Condiments, spices<\/p>\r\n <\/div>\r\n <\/td>\r\n

\r\n

0.045<\/p>\r\n <\/td>\r\n

\r\n

0.00017<\/p>\r\n <\/td>\r\n <\/tr>\r\n <\/tbody>\r\n <\/table>\r\n <\/div>\r\n

\r\n
\r\n
\r\n
\r\n

Natural radionuclides<\/p>\r\n <\/dt>\r\n

\r\n

210Pb,210Po,226Ra,232Th,238U<\/p>\r\n <\/dd>\r\n <\/div>\r\n

\r\n
\r\n

Artificial radionuclides<\/p>\r\n <\/dt>\r\n

\r\n

90Sr,137Cs,239+240Pu<\/p>\r\n <\/dd>\r\n <\/div>\r\n

\r\n
\r\n

Radioactivity survey data<\/p>\r\n <\/dt>\r\n

\r\n

Environmental radioactivity level survey (1989-2005)
\r\n Food sample radioactivity level survey (1989-2005)<\/p>\r\n <\/dd>\r\n <\/div>\r\n

\r\n
\r\n

Food intake data<\/p>\r\n <\/dt>\r\n

\r\n

National Health and Nutrition Survey 2005, Ministry of Health, Labour and Welfare<\/p>\r\n <\/dd>\r\n <\/div>\r\n <\/dl>\r\n

Note: The calculation results are subject to change without prior notice associated with changes to the data used for the calculation.<\/p>\r\n <\/div>\r\n\t\t<\/section>\r\n\t\t

\r\n\t\t\t
\r\n\t\t\t\t

Comparison with Various Radiation Sources<\/h2>\r\n\t\t\t<\/div>\r\n\t\t\t
\r\n\t\t\t\t\"Comparison\r\n\t\t\t\t

Reference: Nuclear Energy 2003 (Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry)<\/p>\r\n\t\t\t<\/figure>\r\n\r\n\t\t<\/section>\r\n\t\t

\r\n\t\t\t
\r\n\t\t\t\t

Radiation Dose from Daily Food<\/h2>\r\n\t\t\t<\/div>\r\n\t\t\t
\r\n

For this survey, we request five households in each prefecture to prepare an extra portion of food and drinks they consume in a day and use that as analysis samples. This allows us to get a picture of the typical radiation dose (committed effective dose) we receive from our daily food.<\/p>\r\n <\/div>\r\n

\r\n
\r\n

Committed effective dose received from daily food (1989-2005)<\/h3>\r\n <\/div>\r\n
\r\n\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n
Nuclide name<\/td>\r\n Effective dose coefficient (*1)
(mSv\/Bq)<\/td>\r\n 		Average radioactivity concentration
(Bq\/person\u00b7day)<\/td>\r\n 		Number of detections<\/td>\r\n Number of samples<\/td>\r\n Committed effective dose
\uff08mSv\uff09<\/td>\r\n <\/tr>\r\n

Sr-90<\/p><\/td>\r\n

0.000028<\/p><\/td>\r\n

0.056<\/p><\/td>\r\n

2619<\/p><\/td>\r\n

2834<\/p><\/td>\r\n

0.00057<\/p><\/td>\r\n <\/tr>\r\n

Cs-137<\/p><\/td>\r\n

0.000013<\/p><\/td>\r\n

0.048<\/p><\/td>\r\n

4236<\/p><\/td>\r\n

5551<\/p><\/td>\r\n

0.00023<\/p><\/td>\r\n <\/tr>\r\n

Th-232<\/p><\/td>\r\n

0.00023<\/p><\/td>\r\n

0.00079<\/p><\/td>\r\n

69<\/p><\/td>\r\n

70<\/p><\/td>\r\n

0.000066<\/p><\/td>\r\n <\/tr>\r\n

U-238<\/p><\/td>\r\n

0.000045<\/p><\/td>\r\n

0.012<\/p><\/td>\r\n

70<\/p><\/td>\r\n

70<\/p><\/td>\r\n

0.00020<\/p><\/td>\r\n <\/tr>\r\n <\/tbody>\r\n <\/table>\r\n <\/div>\r\n

\r\n

(*1): From ICRP Publ. 72<\/p>\r\n <\/div>\r\n

\r\n \"Committed\r\n <\/figure>\r\n

For this calculation, Sr-90 and Cs-137 were selected as the representatives of artificial radionuclides and Th-232 and U-238 as the representatives of natural radionuclides.<\/p>\r\n

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