Contamination of Water Samples from Centralized Air Conditioning System and Other Domestic Environment by Legionella
- VernacularTitle:集中空调系统及其他生活环境水中军团菌污染状况
- Author:
Ying XU
;
Changchun HOU
;
Hongliang LIU
- Publication Type:Journal Article
- Keywords:
Legionella;
Water;
Water pollution
- From:
Journal of Environment and Health
1992;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the contamination of water samples from centralized air conditioning system and other domestic environment by legionella. Methods One hundred and eighty-six samples were collected from 75 sampling sites located among centralized air conditioning system, shower bath and humidifiers. The serology identification and semi-nested PCR were used to identify legionella in water samples. Results The positive rate was 8.60% (16/186) for legionella and 8.06%(15/186) for Legionella pneumophila among water samples respectively. Legionella and Legionella pneumophila were found in cooling water and condensate of centralized air conditioning system and water from shower bath in different degree. Water samples from cooling tower of centralized air conditioning system showed the highest positive rate for legionella and Legionella pneumophila. Conclusion Cooling water and condensate of centralized air conditioning system and water from shower bath present the risk of contamination by legionella. It should be paid more attention to prevent legionnaires' disease.
