Occurrence and Distribution of Legionella in Water System of Central Air Condition

Abstract:

The present results showed that cooling water (CLW) was more easy to be contaminated than the condensed water (CDW) of central aircondition by Legionella in high air temperature and humidity, and the Legionella was not observed in all sample of the cold medium water (CMW) of central aircondition. The air temperature and relative humidity have significant impact on Legionella. No sample was positive while the average relative humidity was lower than (77.08 ± 1.30) %, and the high value of the ratio of positive samples occurred while the average air temperature and the average relative humidity reached to (26.00 ± 0.35) oC and (85.15 ± 0.74) % respectively. It should be attached importance to the Legionella infection and Legionnaires’ disease prevalence resulted from central aircondition, and the cooling water and condensed water should be sterilized regularly for the prevention and control of Legionella disease.

• Periodical: Advanced Materials Research (Volume 647)
• Pages: 566-569
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.647.566
• Online since: January 2013
• Authors: Su Feng Wang, Jing Fen Ao, Xi Cun Yang, Hong Mei Zhang, Ti Feng Jiao, Qi Tong
• Keywords: Central Aircondition, Cold Medium Water, Condensed Water, Cooling Water, Legionella

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