Updated: Monday, May 19, 2025 18:00:01 GMT
This 5-minute data is logged using a
Raspberry Pi3B+
connected to a
MightyOhm Geiger Counter
kit located in East Vancouver, WA, US. This geiger counter kit uses an
SBM-20
tube to detect radiation.
What is a normal background/naturally occurring radiation exposure
rate? Varies depending on where you live. Click the values
for the sources of the data.
Average across
the
U.S.: 0.34μSv/hour
Global
average: 0.17-0.39μSv/hour
Average for station region: 0.05μSv/hour
(EPA Portland Station)
What is the US average for accumulation per year of
background/naturally occurring radiation? 3.1mSv
Based on current rates measured at this station, an 'Annual Equiv mSv'
value is displayed in the lower right corner of the graphs below.
The location of this station has historically measured below the global
and national average.
How do different environments, activities and event exposure rates
compare? See this Radiation
Dose Chart by XKCD.
