Dedicated measurement protocols might be necessary in these circumstances,
as there is often pressure to sell the house as quickly as possible. In such cases,
measurements for a shorter period than usual could be demanded by the buyer. This
may be acceptable, provided there is a good correlation between the short-term and
long-term measurements and that the higher uncertainty connected with short-term
measurements is taken into account (USEPA 1992).
Box 10: Examples of countries imposing radon measurements as part of property transactions
In Norway, Switzerland, the United Kingdom and the USA radon measurements are already a
consideration as part of buying and selling homes (WHO 2007).
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