Radon Exposure

Calculate Radon Exposure instantly with the exact formula and a worked example.

Radon Exposure

Indoor radon concentrationBq/m³
Time indoors per dayh
Years of residenceyears
Effective dose for the period
24.966mSv
Equilibrium factor 0.4 and 9 nSv per Bq·h/m³, per UNSCEARUS EPA action level is 148 Bq/m³ (4 pCi/L)Calculate Radon Exposure instantly with the exact formula and a worked example.
Dose per year
2.5mSv
Concentration
2.7pCi/L
WHO reference level (100 Bq/m³)
Not exceeded

More about: Radon Exposure

What it calculates

The “Radon Exposure” calculator computes Effective dose for the period in mSv from 3 parameters: indoor radon concentration (Bq/m³), time indoors per day (h), years of residence (years).

A handy everyday calculator for daily tasks.

Example calculation

With parameters Indoor radon concentration = 100 Bq/m³, Time indoors per day = 19 h, Years of residence = 10 years the result is 24.97 mSv (Equilibrium factor 0.4 and 9 nSv per Bq·h/m³, per UNSCEAR).

How to use

  1. Enter indoor radon concentration, time indoors per day and years of residence — each field above is adjustable with a slider.
  2. Effective dose for the period (mSv) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Radon Exposure calculated?
The Radon Exposure calculator computes Effective dose for the period (in mSv) from indoor radon concentration, time indoors per day, years of residence. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Radon Exposure calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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