Publisher's Synopsis
This document provides a detailed overview of what Legionella is, why it poses a health risk, and how to prevent its spread in water systems. It begins by introducing the bacterium and discussing the diseases it can cause (legionellosis), highlighting the severe pneumonia known as Legionnaires' disease and the significance of controlling aerosols contaminated with Legionella.
Next, it outlines current regulations in Spain (especially Royal Decree 487/2022) and in other countries, emphasizing the legal requirement for owners of at-risk facilities to implement Prevention and Control Plans (PPCL). It also refers to technical standards such as UNE 100030:2017 and water safety plans (PSL).
The text identifies the main installations likely to harbor or disperse the bacterium (e.g., hot water systems, cooling towers, spas, ornamental fountains) and explains prevention and control methods based on hygienic system design, disinfection, and temperature control. It also describes maintenance programs, microbiological surveillance, and routine testing to detect potential contamination.
Additionally, the document outlines how to respond to outbreaksâ "from notification and sampling to implementing shock disinfectionâ "and provides further recommendations and best practices for reinforced prevention. It concludes with a practical manual of procedures, aimed at those responsible for managing facilities at risk of Legionella.
