Legionella sp. in water systems in public teaching and education facilities in Małopolskie voivodeship in 2016.

Introduction: Bacteria Legionella sp. found in water distribution systems, especially warm, transferred to water spray devices for aerators and showers in the form of aerosols infected with them become a threat to the human inhaler.

Objective: Assessment of colonization of the water supply network with Legionella bacteria in teaching and education facilities in Małopolska in 2016 year.

Material And Methods: The results of water samples taken from plumbing installations were analyzed in teaching and education facilities by employees of the State Sanitary Inspection of the Lesser Poland Voivodeship.

Results: The results of 366 testing hot water samples in 111 teaching and education centers in Małopolska have shown that in 123 testing samples (33,6%) in 48 centers (43,2%) the water sample was colonized with Legionella sp. and the water quality did not meet the requirements of the current ordinance of the Minister of Health.

Conclusions: It is justified to periodically monitor the presence of Legionella sp. in water supply installations in teaching and education centers and taking action to reduce the colonization of these bacteria.