Radon Monitoring (Workplaces)

Radon monitoring is available for all workplaces and domestic homes. Monitoring detectors can be used for short or long-term use, either a 3 week grab sample or the recommended 3 months sample (90 days).

If monitoring of radon in your workplace has shown the presence of this harmful gas, we can offer our expert advice on HSE notification and provide information on the relevant legislation’s that are in place which employers must adhere to. (Health and Safety at Work etc. Act 1974) (The Management of Health and Safety at Work Regulations 1999) (Ionising Radiations Regulations 2017)

The simplest way to monitor levels of this harmful radioactive gas is by strategically placing radon detector monitors. Radon detectors are safe and simple to use. They can sit on a shelf or be stuck to a wall etc. The detectors have a hollow plastic shell that contains a piece of CR39 plastic that records damage caused by the alpha particles emitted from radon gas. Once the testing period is complete, the radon detectors are sent for analysis at an independent laboratory. The results are then sent to you on a report informing you of the levels of radon gas in the premises.

Radon Detector Monitors are deployed and analysed differently to domestic homes, to order radon detectors for a workplace, please contact us for information.

Affordable and Effective Radon Detector Monitors

Radon gas detector monitors are perfectly harmless and do not emit any harmful substances. They are affordable and effective. They detect abnormal levels of radioactive radon gas in the workplace. In general, you should avoid using radon monitors in kitchens, toilets, or corridors, instead place them in areas occupied by employees. For example in an office or workshop. The radon detector monitors must not be opened or tampered with under any circumstances. They can also be damaged when submersed in water or exposed to extreme temperatures.

When monitoring radon, it is important to understand that the radon levels fluctuate every hour, every day and from room to room. Monitoring is therefore ideally carried out over a period of three months (90 days) in order to allow for variations. Ideally, if floor plans are available, we can use our expert knowledge and experience and mark the plans where each radon detector monitor should be placed, providing a comprehensive test across the building, yet keeping the number of detectors and costs to a minimum.

Our nominated independent laboratory uses The TASLIMAGE radon dosimetry system, which is a highly sophisticated radon analysis system. These systems have been sold worldwide and passed the ISO 17025 accreditation. They currently operate a UK validated radon measurement service utilising their system.

The TASLIMAGE radon dosimetry system is unique in that it analyses and characterises each individual track to produce a dose measurement. The algorithm discriminating an etched track from a background feature, whether it is a scratch, a hair etc., does this by using a large number of parameters relating to the characteristics of a track. The system is completely automatic, requiring only a button click, and will provide a dose measurement for each piece of plastic. The scan data is automatically converted to a dose measurement and the results are displayed in a record database.

Legal requirements for workplaces – Risk Assessment

All employers must ensure the working environment is a safe place for employees. In other words, Risk Assessments must be carried out. Radon Gas poses a health risk so a risk assessment is required to ensure employees are not at any risk.

Radon Gas is in every building, everywhere, globally. Mostly, the levels are very low and do not pose a health risk but the only way to know if the levels are elevated and potentially harmful is to carry out a radon test.


Public Health England have produced an indicative radon map, this does not mean an employer does not have to test for radon gas if the premises is is the white areas on the map, radon is in every building. If a building has a basement or any workplace which is below ground, very high levels can be found anywhere in the UK.

For more information on employers’ responsibilities, risk assessments or radon testing, please contact us. We have deployed thousands of radon detector monitors across the UK.