Statistically significant radiation level changes

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6 years 6 months ago #3586 by bethsalem
The weather in my part of Spain has changed quite dramatically as summer draws to a close, and I've noticed that my Radon detector which has hovered around the 3 Bq/M3 level for many weeks has gone up to 19Bq/M3 over the last week.

Similarly, my Radbox-20 has shown a 2.26% increase in the background beta/gamma/x-ray level. My question is:- How much of a decrease or increase in the average background level could be considered statistically significant and indicate a real change in the actual radiation level?

Is plus 2.26% significant or not?

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