Nuclear crisis in Japan - health and safety situation

• Most of the 800 workers have reportedly been evacuated. The 50 who remained are undertaking tremendous personal risk.


• Extremely high levels of radiation were measured around Daiichi on Tuesday morning. Near Unit 4, 100 - 400 mSv/h are reported, and levels of 30 mSv/h between Units 2 and 3. Levels were explicitly confirmed to be measured in milli-Sievert, not micro, by government secretary Edano, which means an immediate threat to health and a hundred times more than any measured so far.

• People within 20-30 kilometre radius of the plant are being told by the government to stay inside, turn off ventilation and dust off their clothes and shoes, as well as take a good shower if they come in from outside.

• Radiation levels nine times background were measured as far as Kanagawa, which is 250 km South-Southwest and very near to Tokyo. In Utsunomiya, 140 km Southwest of the site, levels were 33 times above normal. In Sendai, 100 km North, officials told everyone to avoid rain as it would carry radioactive
contamination. Forecasted wind direction is South East to East, meaning inland and potentially toward Tokyo.

• The town of Minamisoma lies on the 20-30km zone, with a population of 71,000 people.

• According to Japanese government secretary Edano, Unit 4 is believed to be the source of the high radiation levels, which makes it even more alarming - spent fuel has much more long-lived isotopes than a hot reactor core, meaning more potential for long-term contamination.

It is very difficult to predict what happens next. The situation at Units 2 and 4 is not under control and potential for large radioactive releases exists. The high radiation and damage at the facility makes work their extremely difficult.  Our thoughts are with those suffering through the aftermath of earthquake and tsunami and this unfolding nuclear crisis.

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