Record Display for the EPA National Library Catalog


Main Title Measurements of exhaled breath using a new portable sampling method /.
Author Pellizzari, E. D. ; Thomas, K. W. ; Raymer, J. H. ; Smith, D. J. ; Cooper, S. D.
CORP Author Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher Research Triangle Institute for U.S. Environmental Protection Agency
Year Published 1990
Report Number EPA-68-02-4544; EPA/600/3-90/049
Stock Number PB90-250135
Additional Subjects Portable equipment ; Respiration ; Exposure ; Respiratory system ; Concentrations(Composition) ; Houses ; Public health ; Office buildings ; Quality assurance ; Performance evaluation ; Mathematical models ; Design criteria ; Volatile organic compounds ; Air pollution sampling ; Air samplers ; Air pollution effects(Humans) ; Indoor air pollution ; Occupational safety and health ; Pollution sources
Library Call Number Additional Info Location Last
NTIS  PB90-250135 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Breath measurements offer the potential for a direct and noninvasive evaluation of human exposure to volatile organic compounds (VOCs) in the environments in which people live and work. The research study was conducted to further develop the potential of this exposure assessment methodology. A new alveolar breath measurement technique was developed and tested. Air samples were collected in 32 microenvironments and above 6 consumer products to determine a few potential sources of human exposures to selected VOCs. Elimination half-lives were estimated using a mono- and biexponential model. The alveolar breath collection and analysis methodology proved to be very useful for collecting many samples in short time intervals and this capability was very important for accurately describing the initial phase of the decay curves. Analysis of microenvironment air samples from homes, businesses, workplaces, vehicles, etc., revealed a wide range of potential sources of human exposures to VOCs at concentrations from 1 to 16,000 microg/cu m.