|Document ID (ISN)||109014|
|ISSN - Serial title
||1545-9624 - Journal of Occupational and Environmental Hygiene
|Convention or series no.
||First M., Rudnick S.N., Banahan K.F., Vincent R.L., Brickner P.W.
||Fundamental factors affecting upper-room ultraviolet germicidal irradiation - Part I. Experimental
||May 2007, Vol.4, No.5, p.321-331. Illus. 17 ref.
||The objective of this research was to study the factors that relate to the effectiveness of upper-room ultraviolet germicidal irradiation for inactivating airborne microorganisms. The work was conducted in a laboratory chamber designed and furnished to simulate a hospital room. Nebulized Serratia marcescens, Bacillus subtilis spores and vaccinia virus were used as test aerosols. Data were collected from steady-state experiments comparing the number of viable organisms in the chamber air remaining with UV lamps turned on to the number with UV lamps turned off. UV power level had a strong influence but was fully effective only in the presence of strong air mixing. In conclusion, an ultraviolet installation is a complex system that requires careful integration of UV luminaries, UV power and room ventilation systems. See also CIS 09-000, ISN 6.
||ultraviolet radiation; hospitals; infection control; microorganisms
||pathogenic bacteria; viruses; test laboratories; description of technique; disinfection of air; ventilation systems; evaluation of technique; reliability
||D - Periodical articles
||Commerce, services, offices
|Broad subject area(s)
||Health care services