State Representative Jeff Morris is circulating the following information from the state Department of Health:
https://www.doh.wa.gov/Topics/japan-faq.htm
(thanks to Chris Thomerson)
Susun S Weed, author of the Wise Woman website and owner of the Wise Woman Book Shop, wrote the following in 2002:
https://www.wisewomantradition.com/wisewomanweb/2010/11/surviving-radiation-the-wise-woman-way.html
(thanks to Susan Slapin)