Facilities Management » Legionnaires' Disease

Hazard

Inhalation of the Legionella bacteria located in contaminated aerosolized water may cause a form of pneumonia called Legionnaires’ Disease. Legionella bacteria may be present in:

  • Cooling towers, humidifiers and/or air conditioning systems or domestic hot water systems.
  • Areas where spray nozzles are used, such as kitchens, janitorial closets, and showers.

Water management programs that effectively prevent Legionella growth in water systems rely on control and prevention measures, including good system design, proper facility and equipment maintenance, and routine cleaning and disinfection.

Additional Information