Good afternoon, dear guests and subscribers of the "Build for myself" channel!
As you know, on my channel I talk about the construction of my house. And in one of my articles on the construction of a base from natural rubble stone, several people left comments about a negative attitude towards such structures, explaining that any stone has radiation background.
Today, I had a great opportunity to check this, since my wife brought me a dosimeter from work for several days. The dosimeter measures radiation in microroentgenper hour (μR / h) and in microsievert per hour (μSv / h), according to the biological effect, 1 μR / h is equal to 0.01 μSv / h.
Back in the last century, experts proved that radiation is present at any point on the surface of the globe, so it was decided to establish a safe level of radiation background.
The level of safe radiation is considered to be a value not exceeding 0.4 μSv / h (up to 40 microroentgens), while the most common natural background radiation in most territories takes up to 20 μR / h or 0.2 mSv / h.
So, first of all, I turned on the device and measured the radiation background in the house, so that there was something to compare with:
Indoors, the value showed 0.12 mSv / h, in some parts of the house - it reached 0.14, but all the indicators are more than good! Thus, I found out that it is harmless to be in the house :-)
Now, let's move on to direct measurements on the street. The dosimeter system is reconfigured:
So, the system adjusted and in the yard in the fresh air 2 meters from the house showed the same value - 0.12 mSv / h:
Now, we approach the base of rubble stone:
This is more interesting, 0.05 μZ / h higher. Next, I took several measurements at a distance of 5 cm. from the basement, going around the house around the perimeter:
Conclusion
In fact, the background radiation near a natural stone increases by several hundredths of a unit. According to the measurements, the indicators ranged from 0.16 to 0.19 μZ / h, and on the street and inside the house from 0.11 to 0.14 μZ / h. We can say that - yes, there is more "phonite" near the stone, but these indicators are not critical and are within acceptable limits.
P.S.
I live in the Rostov region, I bought the stone at the Rodionovsky quarry.
Thank you for your attention, I hope you enjoyed the article!
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