Radiation levels in Numazu Shizuoka – Appear Reasonably Safe

16 03 2011

Radiation levels have risen due to the crisis of the nuclear reactors in the Miyagi Prefecture after the Sendai Earthquake.

According to the Ministry of Education, Culture, Sports, Science and Technology of Japan radiation levels in the Shizuoka, while higher than average, are currently not a risk.

Levels today for Shizuoka were reported to be between 0.089 μGy/h (millirems per hour) and 0.062 μGy/h with and average of o.o62 μGy/h.

So are we safe from the harmful effects of radiation here in Numazu?

The current US occupational limit of exposure per year is 5000 microsievert . Extrapolated down to an average hourly rate over a year you are looking at 0.0570 μGy/h.  That is a little lower that Shizuoka’s average today but remember you would need to be exposed to that every day for a year before you would be over the US limit. There is no indication to suggest that this level of exposure will continue over a prolonged period of time.

The average radiation levels for Shizuoka is between 0.0281 to 0.0765 μGy/h.

So everything appears to be fairly safe so far. No third eyes or superpowers to report yet.


MIT news

The Ministry of Education, Culture, Sports, Science and Technology of Japan.(copied and translated page)

A cool site with information on radiation levels for Tokyo.

Japan times article from yesterday.

Comments and corrections welcome.

18 Mar 2011 – The Australian Radiation and Nuclear Protection agency supported by The Australian Department of Foreign Affairs and Trade have extended their exclusion zone for Australians to 80km from the Fukushima Nulear Power Plant.  Numazu is about 360km from the plant.

19 Mar 2011 – The ministry of Education, Culture, Sports, Science and Technology have updated their radiation reading for the past few days. For the Shizuoka Prefecture levels have averaged to 0.038μGy/h which rests at almost midway for the average levels in Shizuoka prior to the Nuclear Reactor Crisis. This suggest that levels may be returning to normal.

20 Mar 2011- The ministry of Education, Culture, Sports, Science and Technology have published their radiations readings for yesterday. For Shizuoka Prefecture the levels have again averages at around 0.038μGy/h. This about average for the year.

This is a link to the International Atomic Energy Agency’s (IAEA)  latest update on the nuclear situation. It discusses agriculture, the current handling of the damaged reactors and radiation monitoring.