Year: 1989
Type: article
Abstract: Ventilation rates have been measured in 38 commercial buildings that represent a variety of use types, sizes, ages, and mechanical system configurations.A single tracer (SF 6 ) test was conducted once in 36 buildings over a two-to four-hour period based on ,. mechanical system operation for a prior two-week period.Two buildings were tested ... ... twice under different environmental conditions.Whole building ventilation rates ranged from 0.3 air changes per hour (ACH) to 4.2 ACH for the 40 building measurements with an average value of 1.5 ACH.Minimum ventilation rates were estimated in 13 of the 38buildings.These values reveal that four of the thirteen buildings have minimum ventilation rates that are less than the ASHRAE ventilation standard of 10 Lis/occupant for smoking occupancies.Several pollutants were monitored in the buildings for 10-day periods during working hours.The pollutant group that most frequently approached or exceeded recognized guidelines was respirable suspended particles; the elevated concentrations were usually associated with near-by tobacco smoking.
Authors: B.H. Turk, D.T. Grimsrud, J.T. Brown, K. Geisling-Sobotka, John A. Harrison, R.J. Prill
Language: English
Subfield: Health, Toxicology and Mutagenesis
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
Awards: G1398330795, G1643223109, G193590374
OpenAlex ID: W2500184277