Radioactive substances found in breast milk of 5 women in Tokyo

Minute amounts of radioactive substances have been found in the breast milk of five women in Tokyo and two other prefectures more than a month after a crippled nuclear power plant in Fukushima Prefecture began leaking such materials, a citizen’s group survey showed yesterday
Of samples taken from 41 women in five prefectures, radioactive iodine was detected in the breast milk of a woman in Fukushima Prefecture, and cesium in four others in Tokyo, Fukushima and Ibaraki.

Japan has not set safety levels for radioactive substances in breast milk, but the readings in all five cases were well below the yardstick for tap water consumption by infants under 1 year old.

Members of the group, which had conducted a similar survey in April out of concerns about the impact of the radioactive leaks on mothers and babies, urged local governments to provide testing as many worried mothers have approached them for consultation.

The Health, Labor and Welfare Ministry believes babies will not be exposed to health risks at levels of up to 100 becquerels of radioactive iodine per kilogram of drinking water or 200 becquerels of cesium. The readings logged in the five cases, sampled between April 22 and May 5, were 5.5 becquerels of iodine and 4.8 to 10.5 becquerels of cesium.

Disclaimer: "Neither "" or "" or "the controlling writers" shall not be liable whatsoever in tort, contract or otherwise to any person, corporation or other entity in respect of the information. all information contained in the blog is provided without responsibility and all persons, corporations and other entities should satisfy themselves as to the truth and accuracy of the information by their own investigations, enquiries, advices or otherwise"


  1. What organization did this testing? What were the specific results of the tests? What is the impact if any of that level of radioactive contamination?

    Where is this contamination supposedly from?

    Look forward to further information posted here or sent to me at

    Thank you.

  2. All very good questions, unfortunately after spending hours of sending emails,(with no resonses) and searching the net trying get answers to the same questions, I can't answer them. Like a lot of other information in the media here in Japan, the culture is good at being vague and due to mostly language problems - not many are keen to respond to any 'Gaijins' enquires. Cheers, Ed