American journal of infection control · 2011
Control of Legionella contamination in a hospital water distribution system by monochloramine.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Marchesi Isabella, Cencetti Stefano, Marchegiano Patrizia, Frezza Giuseppina, Borella Paola, Bargellini Annalisa
Аннотация
BACKGROUND: We report the results of 1-year application of monochloramine to control Legionella pneumophila contamination in a hospital hot water distribution system.
METHODS: In the main building of the hospital, a device continuously distributing monochloramine was installed. Legionella pneumophila and Pseudomonas spp contamination was followed in comparison with 2 other water networks in the same building using chlorine dioxide.
RESULTS: Monochloramine significantly reduced the number of contaminated sites compared with baseline (from 97.0% to 13.3%, respectively), chlorine dioxide device I (from 100% to 56.7%, respectively), and device II (from 100% to 60.8%, respectively). No positive sample exceeded 10(4) colony-forming units/L versus 59.4% at baseline.
CONCLUSION: Monochloramine could represent a good alternative to chlorine dioxide in controlling legionellae contamination in public and private buildings.
METHODS: In the main building of the hospital, a device continuously distributing monochloramine was installed. Legionella pneumophila and Pseudomonas spp contamination was followed in comparison with 2 other water networks in the same building using chlorine dioxide.
RESULTS: Monochloramine significantly reduced the number of contaminated sites compared with baseline (from 97.0% to 13.3%, respectively), chlorine dioxide device I (from 100% to 56.7%, respectively), and device II (from 100% to 60.8%, respectively). No positive sample exceeded 10(4) colony-forming units/L versus 59.4% at baseline.
CONCLUSION: Monochloramine could represent a good alternative to chlorine dioxide in controlling legionellae contamination in public and private buildings.