Use Of ATP Testing To Assess The Effectiveness Of Cleaning Methods Utilised To Remediate Residential/Commercial Properties That Have Been Affected By Microbiologically High Risk Events

ATP (adenosine triphosphate) is a molecule used for energy storage in almost all living cells: this includes humans, animals, plants, bacteria, yeasts, and fungal cells, including mould. Measurement of ATP concentrations may be undertaken on surfaces using a wet swab on a dry surface or a dry swab on a wet surface. The swab is placed into a liquid containing a compound called luciferin that causes bioluminescence (light) to be produced when it reacts with an enzyme called luciferase, which is found in fireflies. The strength of the bioluminescent signal emitted as a result of the reaction is proportional to the amount of ATP present. The signal is measured in units called Relative Light Units (RLU). This test provides a quick and easy method to generate an RLU value that can be utilised to infer the level of biological activity on the surface, or as it is sometimes called “bioburden”.

IAQAA members and industry associated professionals have available to them the use of ATP meters. This submission is applicable to these groups and is the association’s position on its use and purpose for ATP testing to assess the effectiveness of cleaning methods utilised to remediate residential and commercial properties that have been affected by microbiologically high-risk events.