The effect of penetration factor, deposition, and environmental factors \non the indoor concentration of PM2.5 sulfate, nitrate, and carbon
Year: 2002
Type: conference-paper
Abstract: Indoor exposure to particles of outdoor origin constitutes an important exposure pathway.We conducted an intensive set of indoor particle measurements in an unoccupied house under differing operating conditions.Real-time measurements were conducted both indoors and outdoors, including PM2.5 nitrate, sulfate, and carbon.Because the time-scale of the fluctuations in outdoor particle concentrations and meteorological conditions are often similar to the time constant for building air exchange, a steady state concentration may never be reached.The time-series experimental data were used to determine the effect of changes in air exchange rate and indoor/outdoor temperature and relative humidity differences on indoor particle concentrations.A multivariate regression was performed to investigate the difference between measured indoor concentrations and results from a simple time-dependent physical model.Environmental conditions had a significant effect on indoor concentrations of all three PM2.5 species, but did not explain all of the model variation.
Authors: Thatcher, T. L., Lunden, M. M., Sextro, R. G., Hering, S., Brown, N. J.
Language: English
Subfield: Health, Toxicology and Mutagenesis
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
Funder: U.S. Department of Energy
Awards: G1398330795, G1643223109, G193590374
OpenAlex ID: W1588289294