The Importance of Legionella Risk Assessment

by ryan on March 1, 2017

Legionella Risk Assessment – What Is Legionella?


The Importance of Legionella Risk Assessment

Legionella is a water-loving bacteria, which can be found everywhere where is stagnant warm water. The pathogen is present in 90 percent in the hot water systems of our kitchens and bathrooms.

We can drink it, we can even make bath in it every day and still don’t get sick, but if we inhale the water spray, we could even die from the disease Legionella bacteria causes. We can come in contact with this bacteria, as long as we don’t let them get into our lungs.

If we inhale the nebulized form of the bacteria, we are at high risk of pneumonia, and after that of respiratory and circulatory failure.
Possible sources of infection could be fountains, air conditioning systems, cooling towers, whirlpools, garden sprinklers, aquariums or humidification equipments.

The disease, in most of the cases can not be noticed in his first stage, it has no individual character, which would make it easy to identify. In the case, if it is a mild version, the person could get symptoms, as headache, fever and limb pain, but these spontaneously disappear. However, in more severe cases the pneumonia can be associated with diarrhea, the patient can feel extremely sleepy and could be tormented by dry cough.

Legionella Risk Assessment – Luck Or Science ?

It seems it is only a matter of luck if you do or do not get sick of Legionella bacteria. In severe cases, the therapy is mostly influenced by the time the treatment has began. The treatment which is required for getting healthy is two-three weeks long.

If a few years ago, a Legionella risk assessment wasn’t always required, now it is for all the buildings, where people live, or work and where water supplies are available.

The reason for this is that nowadays this bacteria is much well known, there is many information about it, and everybody knows the risks, and diseases this could cause.

In the case of a Legionella risk assessment a trained engineer, who is an external water consultant, is needed, who has the duty to inspect the water system, including void areas and loft spaces and to find out if the bacteria can be found in the water. A Legionella risk assessment many times includes information, such as biological analysis results, storage and distribution temperatures, remedial works recommendations and so on.

This bacteria it is controlled through chemicals in the case of the process systems and the temperature whilst cooling towers. Chlorine Dioxide is one of the most efficient chemicals against Legionella bacteria and it is safe to use it for d rinking water to.

A Legionella risk assessment is highly recommended, because even if it doesn’t guarantee the prevention of the diseases this bacteria could cause, it can reduce the risks, which is a start.

Legionella, unfortunately can not be prevented, but with a little care and attention the risk of the infection can be reduced, this is why it is so extremely important to get a Legionella risk assessment, or even other bacteria risk assessments, to make sure that the water you drink and use every day for your foods and body, it is clean and healthy.

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