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Library of Congress and U.S. EPA Indoor Air Quality and Work Environment Study: environmental survey results.
Crandall-MS; Highsmith-R; Gorman-R; Wallace-L
Indoor Air '90, Precedings of the 5th International Conference on Indoor Air Quality and Climate, Toronto, July 29 - August 3, 1990, 1990 Jul; :597-602
The environmental monitoring results from the Library of Congress (LOC) Madison Building and three Environmental Protection Agency (EPA) buildings were summarized. The study was conducted in February and March of 1989. Primary air samples were collected at 51 locations inside the LOC and 65 locations inside the EPA buildings. Included in the environmental parameters were temperature, humidity, carbon-dioxide (124389) (CO2), dust levels, formaldehyde (50000), 27 other volatile organic compounds (VOC), bacteria, fungi, respirable suspended particles (RSPs), and nicotine (54115). The mean temperature at the LOC was 73 degrees-F and ranged from 74 to 77 degrees-F at the EPA sites. The mean relative humidity at the LOC was 49%, and averaged 23% at the EPA buildings. The mean CO2 concentration was 491 parts per million (ppm) at the LOC, and ranged from 504ppm to 746ppm at the EPA. The mean values of RSPs at the LOC and EPA buildings were 5.5 and between 9.5 to 14.1 micrograms per cubic meter (microg/m3), respectively. Nicotine levels at the LOC ranged from 0.6 to 18.5microg/m3, and 0.4 to 0.7microg/m3 at the EPA. Formaldehyde levels at all buildings were very low. The total VOCs averaged 1.1ppm carbon at the LOC, and ranged from 0.5 to 1.9ppm carbon at the EPA. Chlorpyrifos (2921882) was the only pesticide observed at the LOC above the analytical limit of detection. No pesticides were observed at the EPA. Whole building average carbon-monoxide (630080) concentrations were well below the EPA 8 hour standard at all buildings.
Environmental-health-monitoring; Office-workers; Volatiles; Tobacco-constituents; Airborne-particles; Air-temperature; Formaldehydes; Indoor-air-pollution; Microorganisms; Work-environment; Indoor-environmental-quality
124-38-9; 50-00-0; 54-11-5; 2921-88-2; 630-08-0
Indoor Air '90, Precedings of the 5th International Conference on Indoor Air Quality and Climate, Toronto, July 29 - August 3, 1990
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division