The Health and Safety Executive (HSE) has highlighted new external guidance produced by the Water Management Society on the subject of Legionnaires' Disease.

The new series of free factsheets focus on rapid microbiological testing methods and have been produced by the Rapid Microbiology Industry Liaison Group of the Water Management Society.

The five brief factual sheets are intended to give an unbiased and objective view on the latest commercially available rapid testing technologies.

The guides were previously only available to Society members, but have now been made available for downloading through the Society’s website.

The series currently consists of factsheets on:

  • Immuno-Magnetic Separation (IMS) (Legipid)

  • Most Probable Number (MPN) technique to detect Legionella Pneumophila (Legiolert™)

  • Most Probable Number (MPN) technique to quantify Pseudomonas Aeruginosa (Pseudalert™)

  • Polymerase Chain Reaction (PCR) (Biotecon Diagnostics)

  • Polymerase Chain Reaction (PCR) (Bio-Rad).

According to the HSE, legionella risks in the workplace may arise if the premises has any one of the following:

  • a cooling tower or evaporative condenser

  • dry/wet cooling systems (sometimes referred to as hybrid or adiabatic coolers)

  • hot and cold water systems

  • spa pools

  • other potential risk systems, eg humidifiers, emergency showers, indoor ornamental fountains.

Last reviewed 5 February 2019