Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork

VanOsdell, Douglas; Foarde, Karin

doi:10.2172/807360

Title: Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork

Full Record
Other Related Research

Abstract

Ultraviolet; UV; UVC; UVGI; HVAC; ductwork; mold; fungus; effectiveness; microbial; dose; irradiance; reflectance; bacillis; aspergillis

Authors:: VanOsdell, Douglas; Foarde, Karin

Publication Date:: 2002-11-30

Research Org.:: Air-Conditioning and Refrigeration Technology Institute, Arlington, VA (US); RTI International, Research Triangle Park, NC (US)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EE); Office of Building Technologies (US)

OSTI Identifier:: 807360

Report Number(s):: DOE/OR22674/610-40030-01
ARTI-21CR/610-40030-01; TRN: US200306%%318

DOE Contract Number:: FC05-99OR22674

Resource Type:: Technical Report

Resource Relation:: Other Information: PBD: 30 Nov 2002

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; 59 BASIC BIOLOGICAL SCIENCES; AIR; LIGHT BULBS; BACILLUS; ASPERGILLUS; IRRADIATION; ULTRAVIOLET; UV; UVC; UVGI; HVAC; DUCTWORK; MOLD; FUNGUS; EFFECTIVENESS; MICROBIAL; DOSE; IRRADIANCE; REFLECTANCE; BACILLIS; ASPERGILLIS

Citation Formats


                    VanOsdell, Douglas, and Foarde, Karin. Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork.  United States: N. p., 2002. 
        Web.  doi:10.2172/807360.

Copy to clipboard


                    VanOsdell, Douglas, & Foarde, Karin. Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork.  United States.  https://doi.org/10.2172/807360

Copy to clipboard


                    VanOsdell, Douglas, and Foarde, Karin. 2002.  
        "Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork".  United States.  https://doi.org/10.2172/807360.  https://www.osti.gov/servlets/purl/807360.

Copy to clipboard


                    
@article{osti_807360,

  title        = {Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork},

  author       = {VanOsdell, Douglas and Foarde, Karin},

  abstractNote = {Ultraviolet; UV; UVC; UVGI; HVAC; ductwork; mold; fungus; effectiveness; microbial; dose; irradiance; reflectance; bacillis; aspergillis},

  doi          = {10.2172/807360},

  url          = {https://www.osti.gov/biblio/807360},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2002},

  month        = {11}

}

Copy to clipboard

Technical Report:

View Technical Report (1.36 MB)

https://doi.org/10.2172/807360

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork

Technical Report VanOsdell, Douglas; Foarde, Karin

Germicidal ultraviolet (UVGI) lamps have a long history of use for inactivating microbial aerosols. Most reports have focused on the control of infectious diseases, such as tuberculosis (TB), in the occupied spaces of medical facilities. Ventilation duct use of UVGI has been increasing. In-duct applications are generally more concerned with controlling environmental organisms than with controlling infections agents. This document reports the results of a project to investigate the ability of UVGI lamps to inactivate representative environmental microbial aerosols in ventilation ducts. During this research, UVGI lamps were experimentally demonstrated to inactivate bioaerosols composed of vegetative bacteria, bacteria spores, ormore »« less
https://doi.org/10.2172/810964

Full Text Available
Guidelines for the application of upper-room ultraviolet germicidal irradiation for preventing transmission of airborne contagion -- Part 1: Basic principles

Conference First, M; Nardell, E; Chaisson, W; ...

Upper-room ultraviolet germicidal irradiation (UVGI) holds the promise of greatly lowering the concentration of airborne organisms in the lower part of the room and thereby controlling the spread of airborne infection among occupants. The determinants of effectiveness in clearing the lower room air of infectious organisms are the UV irradiance in the upper air, the rate of air mixing between upper and lower zones, and the specific susceptibility of a microbe to UVGI. The germicidal dose is the product of irradiance times duration, and the two components are mutually interchangeable within wide limits. Control of eye exposure to UVGI, tomore »« less
Cyclobutane-type pyrimidine photodimer formation and induction of ornithine decarboxylase in human skin fibroblasts after UV irradiation

Journal Article Niggli, H; Roethlisberger, R - J. Invest. Dermatol.; (United States)

Cyclobutane-type pyrimidine photodimers as well as the induction of ornithine decarboxylase (ODC) may serve as biochemical markers of the mutagenic and carcinogenic effects of ultraviolet light (UV). For this reason, it is important to compare the formation of pyrimidine dimers with the induction of ODC in human skin fibroblasts after irradiation with UVC (200-290 nm) and UVB (290-320 nm). In our studies we determined cytosine-thymine (C-T) as well as thymine-thymine dimer yields (T-T) by high-pressure liquid chromatography in cultures of neonatal normal human foreskin-derived fibroblasts after irradiation with UVC and UVB light. It was found that the yield of dimerizationmore »« less
https://doi.org/10.1111/1523-1747.ep12477095
Breakthrough of ultraviolet light from various brands of fluorescent lamps: Lethal effects on DNA repair-defective bacteria

Journal Article Hartman, P; Biggley, W - Environmental and Molecular Mutagenesis

In a comparative study of 17 pairs of 15 W fluorescent lamps intended for use in homes and purchased in local stores, we detect over 10-fold differences in UVB + UVC emissions between various lamps. This breakthrough of ultraviolet (UV) light is in part correlated with ability of lamps to kill DNA repair-defective recA{sup {minus}}uvrB{sup {minus}} Salmonella. Relative proficiency of lamps in eliciting photoreactivation of UV-induced DNA lesions also plays a prominent role in the relative rates of bacterial inactivation by emissions from different lamps. Lamps made in Chile, such as Phillips brand lamps and one type of General Electricmore »« less
https://doi.org/10.1002/(SICI)1098-2280(1996)27:4<306::AID-EM5>3.0.CO;2-A
Induction of UV photoproducts and DNA damage by solar simulator UV irradiation

Journal Article Wolfreys, A; Henderson, L; Clingen, P - Environmental and Molecular Mutagenesis

The recent increased incidence of skin cancer and the depletion of the ozone layer has increased interest in the ultraviolet (UV) component of natural sunlight and its role in the induction of skin cancer. Previous research on UV radiation has concentrated on UVC (254nm) but, as only UVB and UVA are present in natural sunlight, its relevance is unknown. We have investigated the induction of two forms of direct DNA damage - the pyrimidine dimer and the (6-4) photoproduct - in human DNA repair deficient XP-G (Xeroderma pigmentosum group G) lymphoblastoid cells following exposure to simulated sunlight. As exposure tomore »« less
https://doi.org/10.1016/S0027-5107(97)83264-2

Similar Records