1. My name is Shizuyo Sutou from Shujitsu University, Okayama, Japan.
My presentaion is entitled, "The linear no-threshold model (L-N-T) is invalid: Low-
dose, essential; mid-dose, beneficial; and high-dose, hazardous."
2. My research into hormesis started at the Fukushima Daiichi nuclear power plant
accident on March 11, 2011. Residents within a 20 km radius of the power plant
were forced to evacuate.
3. From May to August, a tentative home-return program was conducted. I engaged
in monitoring returnees for radio-contamination.
4. Returnees were taken home by bus and after staying for two hours, they returned
to the off-site center.
5. Among more than 33 thousand returnees, no one was contaminated. Radiation
itself did not kill anyone at the Fukushima accident, but enforced evacuation killed
more than 2,000 people. LNT is a killer. Why the evacuation was conducted?
Because, LNT asserts that the smallest amount of radiation is hazardous. If it were
not for LNT, no need to evacuate, no need to decontaminate soils, and no need to
stockpile tritiated water.
6. Now, all foods contain K-40 and other radionucleids. So, all foods are radioactive.
Also, all living organisms are radioactive.
7. We are exposed to radiation internally and externally. The mount is about 20,000
radiation hits per second.
8. At Fukushima, I was exposed to radiation of 6,000 counts per mminute at
maximum. I was scared that my cancer risk might be elevated. So, I studied hardly
the biological effects of radiation. I was relieved to learn the 6,000 counts per
mminute is 100 counts per second and 100 hits are negligible as compared with
20,000 hits per second. It means that my cancer risk was not elevated.
9. In hormesis, lower-doses are beneficial, but higher-doses are hazardous. Dose-
response curves of hormesis show a J-shaped curve. Many data show J-shaped
curves, the hallmark of hormesis.
10. LNT and hormesis dose-responses are compared. LNT and hormesis are
incompatible with each other. Most data support hormesis, meaning that LNT is
invalid.
11. The lifespan of Hiroshima and Nagasaki A-bomb survivors shows hormetic J-
shaped curve. The lifespan of the survivors is longer than that of the Japanese by
about one year.
12. A-bomb survivors' cancer risk is lower than the Japanese by several %.