To encourage an understanding of the risk of exposure to radon and to recognise where any risk has been mitigated.
Is the asset in an area with the potential for elevated indoor level of radon?
|Credits||Answer||Select a single answer|
|0||A||Question not answered|
|2||C||Yes, testing has been carried out but no mitigation measures are required.|
|0||D||Yes, testing has been carried out but no mitigation measures are in place.|
|2||E||Yes, testing has been carried out and all appropriate mitigation measures are in place.|
|Criterion||Assessment criteria||Applicable answer|
Where there are no national or regional maps that establish radon affected areas, testing can be carried out to establish if there is a risk.
Testing should be performed in accordance with a nationally recognised procedure or the ISO 11665 series of standards.
|2||The radon level at which mitigation measure are required should be determined by national or regional best practice. Where this doesn’t exist, the World Health Organisation recommends a radon level <100 Bq/m3 . Therefore, radon levels above this would require mitigation measures.||All|
|3||Mitigation measures should follow National best practice guidance.||C,D|
|4||Where mitigation measures have already been installed further testing is not required. The Assessor must confirm that the measures are still in good working order.||E|
|-||The evidence below is not exhaustive, please also refer to the ‘BREEAM evidential requirements’ section in the scope of the Guidance for appropriate evidence types which can be used to demonstrate compliance.|
|1||A copy of National or Regional maps of radon affected areas or, where there are none, test results showing the asset’s radon level.|
|2||The radon test results including confirmation that the testing procedure used aligns with the ISO 11665 series of standards.|
|3||Where the radon level determining when mitigation measures are required differs from the World Health Organisation recommendation, evidence of this determination (e.g. PDF print out of webpage by the national or regional authority documenting the level).|
Confirmation of the National best practice guidance used to determine mitigation measures or a report by a suitable professional that confirms the mitigation measures are appropriate.
Photographic evidence of mitigation measures and Assessor’s site inspection report confirming that they are still in good working order.
Guidance on mitigation of Radon risks
The following reference sources provide guidance on commonly used protective measures for radon and may be used to help find the best solution(s) for an asset’s situation.
- BR 211, Radon: Guidance on protective measures for new buildings, BRE, 2015
There are many radon testing laboratories that can send out testing kits that will subsequently be analysed. For example, Public Health England provide Radon Measurement Packs, which can also be sent out internationally. See https://www.ukradon.org/services for more information.
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