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Guide for Radon Measurements in Public Buildings

This document is intended for persons and organizations intending to carry out radon measurements in public buildings. These buildings, considered dwellings, have a high occupancy rate and/or residency period for members of the public. The types of buildings include hospitals,
schools, long-term care residences and correctional facilities.

The purpose of the testing is to evaluate radon levels in order to determine the need for remedial
action to protect the dwelling residents. Occupational exposure of workers to radon is addressed separately through existing guidelines orregulations such as the Canadian Guidelines for Management of Naturally Occurring RadioactiveMaterials (NORM) and the Canada Labour Code.

The scope of this document is limited to guidance regarding types of measurement devices,
device placement, measurement duration, and the interpretation of measurement results regarding
corrective action for health protection in public buildings and schools.

Please see the attached document for more information.