Category 1 [Updated March 8, 2007]* 592 people had results ‘below reporting level' - below 30 millibecquerels (mBq) per day (natural levels of Po-210 in urine are typically in the range 5-15 mBq per day). It is therefore unlikely that any of these people had been exposed to Po-210
Category 2
* 85 people had results above 30 mBq per day in their urine, but with a dose less than 1mSv indicating no public health risk, and no health concern to the individual, but probable contact with Po-210
Category 3a
* 35 people had results above 1 millisievert (mSv), but below 6mSv indicating no public health risk, and no health concern to the individual, but probable contact with Po-210
There are 712 results in categories 1, 2 and 3a and these are NOT of health concern.
Category 3b
* 17 people had results above 6mSv which are not significant enough to result in any illness in the short term and any increased risk in the long term is likely to be very small.
Elevated Levels Polonium-210
1. Alexander Litvinenko, 2-10 millionths of a gram, that is 50-200 times the theoretical lethal dose of 50 billionths of a gram.
2. Dmitri Kovtun (hospitalized more than 1 month)
3. Andrei Lugovoi (hospitalized 3 weeks)
4. Mario Scaramella, got up to 250 billionths of a gram, five times the lethal dose
5. Marina Litvinenko
6. Dmitri Kovtun’s ex-wife (Hamburg, Germany)
7. Seven staff from the Pine Bar, The Millennium Hotel London Mayfair
8. 3-guests at the Pine Bar, The Millennium Hotel London Mayfair
9. 1-staff member at Sheraton Hotel Park Lane
10.1-staff member at the Best Western Hotel, Piccadilly
Executive Overview: Nuclear, Biological and Chemical Defense
Positive polonium test on guest
Litvinenko Investigators Say Two More Exposed to Radiation
Update on public health issues related to Polonium-210 investigation
Assessments of Doses from Measurements of Poloniuum-210 in Urine
What is Polonium-210?
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