Ultrafine particles: 3 Years of measurements in the NIST test house

Lance Wallace, Andrew Persily, Steven Emmerich, Donghyun Rim, Hoang Phuong Chi, Cynthia Howard-Reed, Wang Fang, Michal Green, Jung Il Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

NIST has supported research characterizing ultrafine particle sources and dynamics for more than a decade. Over 90 % of ultrafine particles (UFP) produced by stovetop cooking on both gas and electric stoves were <10 nm in diameter. Emission rates of up to 1014 min-1 were noted. Coagulation was a dominant removal mechanism and was modeled with some success. Kitchen exhaust fan efficiencies varied from <10 % for particles <5 nm to nearly 100 % for particles >10 nm. Using the NIST test house, penetration coefficients and deposition rates were estimated under real-world conditions for particles in closed-window and open-window configurations. Infiltration factors using dedicated automated air change rate measurements varied from 0.02 for the smallest (<5 nm) particles to >0.5 for larger (30 nm to 100 nm) sizes.

Original languageEnglish
Title of host publication12th International Conference on Indoor Air Quality and Climate 2011
Pages859-864
Number of pages6
Publication statusPublished - 2011 Dec 1
Event12th International Conference on Indoor Air Quality and Climate 2011 - Austin, TX, United States
Duration: 2011 Jun 52011 Jun 10

Publication series

Name12th International Conference on Indoor Air Quality and Climate 2011
Volume2

Other

Other12th International Conference on Indoor Air Quality and Climate 2011
CountryUnited States
CityAustin, TX
Period11/6/511/6/10

All Science Journal Classification (ASJC) codes

  • Pollution

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  • Cite this

    Wallace, L., Persily, A., Emmerich, S., Rim, D., Chi, H. P., Howard-Reed, C., Fang, W., Green, M., & Choi, J. I. (2011). Ultrafine particles: 3 Years of measurements in the NIST test house. In 12th International Conference on Indoor Air Quality and Climate 2011 (pp. 859-864). (12th International Conference on Indoor Air Quality and Climate 2011; Vol. 2).