Investigation on Pollution Status of Centralized Air Conditioning-Ventilating Systems in Five-Star Grade Hotels in Beijing
- VernacularTitle:北京五星级宾馆集中空调通风系统污染现状的调查
- Author:
Yi ZHANG
;
Yumin LIU
;
Baohui ZHOU
- Publication Type:Journal Article
- Keywords:
Public facilities;
Heating-ventilating-air conditioning system;
Pollution
- From:
Journal of Environment and Health
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the actual pollution status of heating-ventilating-air conditioning(HVAC) systems in five-star grade hotels in Beijing. Methods Seven sets of centralized HVAC system from five five-star grade hotels in Beijing were selected for sampling monitoring and videotaping in situ from August 2003 to October 2003. Results There were six sets HVAC systems seriously polluted and one set was in moderately polluted according collected dust weight. The total counts of bacteria in the dust were in medium pollution grade in four sets of HVAC systems; The total quantity of fungus in the dust were in medium pollution grade in five sets of HVAC systems; The video materials showed that inside the air duct there were fungus, construction rubbish and deposit of large quantity of dust. Conclusion The HVAC systems of those five hotels were seriously polluted.
