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Legionella Sources
John Herbert Last updated 4 Jan 2012
Since the discovery of the Legionellae genus in 1976 we have slowly learned more about this deadly pathogen. There are hundreds of papers, codes and guidelines, and yet every day people still contract this potentially fatal disease.
Many people have asked what equipment / devices have been associated with cases of Legionnaires' disease, The question is misleading because it does not address the root of the issue, Legionella is aqueous, it exists all around us, and given the right set of environmental issues it could cause disease.
However, here is a list of some known Legionella distributors and diseminators:
- Air Handling Units
- Cooling Towers
- Concrete plant jet washer (UK)
- Ice making machine
- Respirator (Hong Kong)
- Fire services hose reel
- Decorative water feature (USA)
- Dental machinery
- Humidifiers
- Hydro Therapy pool
- Evaporative Cooler (swamp cooler)
- Fountain
- Birthing Pool/Bath (Japan)
- Olsen (Japan)
- Nebulizer
- Shower
- Sight Glass
- Sewerage Treatment Plant (France)
- Pneumatic vessel
- Whirlpool / spa - hotel
- Whirlpool / spa - exhibition
- Whirlpool / spa - trade fair
- Whirlpool / spa - retail
- Wash basin (Tamar, Hong Kong)
- Lathe Coolant (USA)
- Misting Devices for cooling
- Swimming pools
- Car Wash
Click here to download the old version schedule of the published in 1994 with references
Legionella Audit
Building owners and operators have a fiduciary responsibility to protect the general public, their staff and occupants from health hazards. Employers also have duties, under the relevant labour ordinance, to provide a healthy and safe working environment for staff.
Kelcroft's Legionella Audit is a methodical engineering assessment of the risk for your building, hotel, campus, process water system, or factory.

The Kelcroft assessment
includes
a review of
facility design, operation, maintenance and any treatment programmes to
help facilities owners minimise the risk of problems related to
waterborne pathogens, and ensure compliance with applicable local and
international guidelines, and regulations.
Next you might like to
- Order a risk assessment today call +(852) 2335 9830
- Order EMSD Cooling Tower Audit
- learn about Legionella in Hong Kong
- learn about apparatus involved with Legionella infection
- read about the Legionella infectious dose
- Call for Kelcroft site survey
- Read our Legionella FAQ
- Download Legionella device schedule (PDF)
- send us fax +(852) 2335 9862
- Email Kelcroft
- Return to Kelcroft's Legionella home page