December 2012 report on local background radiation levels
Here is a chart for December 2012, plus this years monthly average chart. This December was 43% above the pre-Fukushima 4 year average for December, making it equal with the month high we had in January 2012.
The average for the year of 2012 was 21% above the pre-Fukushima 4 year average, see the month average chart.
I have incomplete data for December 2011, as the new Gamma Scout Geiger Counter had just arrived. It was a while before I set up data logging on this unit. Didn’t realize how important data logging would be at the time.
As you can see from the data I did record for that month, the average for December 2011 was 26% percent above average. Also you can see in that chart, there were more dynamic swings in background levels, compared to December 2012.
The data is clearly showing increasing background levels of radiation over the last two years, at my location on the central east coast of Australia.
Also, during the month there were significant rain washout detections in Caloundra and Nimbin, plus peak detections in Sydney, and on New Zealand North Island.
November 2012 report on local background radiation levels
The day local background average for the 29th of November again hit 40% above average. This was the fifth time in November that the day local background average had gone 40% above average. (See day average chart)
This pushed the November monthly average to 31% above average, compared to the 4 year recorded average of 0.10 uSv/hr.
This is showing a steady increase in background radiation levels over time, at our location in the Southern Hemisphere.
The local background radiation average for the month of October was elevated at 19% above the four year recorded average. It was also a very volatile month, with dynamic swings in local background radiation levels. These dynamic swings in background levels were tied to wind direction. Northerly wind direction consistently increased local background levels of radiation.
At the beginning of the year, we had lots of short duration spikes in radiation, that were detected up the eastern sea board of Australia and in New Zealand by independent testers. Now we are seeing broader increases over longer longer periods of time. Click the link to see the October day average chart, to see this dynamic.
After doing a lot of rain swab scintillator tests, what was detected were increased radioactive Radon gas levels. Here is a link to information on Radon gas.
The local rain washout test chart, link below, shows Radon, the daughter decay chain of Lead, Pb-210 and Pb-214, plus Bismuth Bi-214. Longer period testing showed that all that was left after leaving the test sample for a week, was the long life Radon daughter Pb-210.
There are a number of theories that have been put forward for the increasing Radon levels.
50 times more Uranium than normal was detected in air over Hawaii on the 21.03.2011.
All this extra Uranium that has been aerosolized into the air from the Fukushima Nuclear Disaster into the Northern Hemisphere atmosphere, is constantly releasing extra Radon gas. This would explain the increase in radioactive Radon gas coming across the equatorial boundary from the Northern hemisphere.
Also, there are constant steam releases from the underground super heated melted Nuclear reactor cores, hitting ground water. This releases a lot of extra Radon that is in the cores and soil at Fukushima. Watch this video from the 30.10.2012 to see a live shot of ground venting at the Fukushima site, from the underground Nuclear reactor cores. This is a common occurrence there.
Radon has a half life of 3.82 days so it is around for at lease 38 days. You multiply the half life of an isotope by 10 to get the effective life of it in the environment. If a sufficiently large enough extra amount of Radon is continually being produced in the Northern Hemisphere atmosphere, there is plenty of time for it to get here, and be detected, if the weather conditions are favourable.
Radon Theory Two
Increasing Radon levels have nothing to do with Fukushima, but by increased global temperatures, or seismic activity in the Northern Hemisphere.
Any increase in background radiation levels, or Radon levels is not good. Radon is the second biggest cause of lung cancer, after smoking.
Monthly Average Chart 2012
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