Legionella risk and disinfection

                                                                                  

                                

                                                               

Assessments should be carried out

A full risk assessment of hot and cold water systems to ensure adequate measures are in place to control the risks.

To prevent harm to staff, public and residents

A risk assessment is simply the process of ascertaining if these circumstances are present, resulting in health and safety risks for staff, residents and site visitors.

Most people become infected when they inhale microscopic water droplets containing legionella bacteria. This might be from the spray from a shower, faucet or whirlpool, or water from the ventilation system in a large building. Outbreaks have been linked to: Hot tubs and whirlpools legionella bacteria is commonly found in water. The bacteria multiply where temperatures are between 20-45°C and nutrients are available. The bacteria are dormant below 20°C and do not survive above 60°C.

Legionnaires’ disease is a potentially fatal type of pneumonia, contracted by inhaling airborne water droplets containing viable Legionella bacteria. Such droplets can be created, for example, by: hot and cold water outlets; atomizers; wet air conditioning plant; and  whirlpool or hydrotherapy baths.

Anyone can develop Legionnaires’ disease, but the elderly, smokers, alcoholics and those with cancer, diabetes or chronic respiratory or kidney disease are at more risk