Cited by 215Indoor Air Quality and Microbial ExposureWind and Air Flow StudiesAir Quality and Health Impacts

Particle Penetration Through Building Cracks

Open access
Liu, De-Ling, Nazaroff, William W.·2003·Aerosol Science and Technology

Abstract

Particle penetration into buildings influences human exposure to particles of ambient origin. In this study, we present the results of laboratory experiments measuring particle penetration through surrogates of cracks in building envelopes. Rectangular slots were prepared, with crack heights of 0.25 and 1 mm and flow-path lengths of 4-10 cm, using common building materials: aluminum, brick, concrete, plywood, redwood lumber, pine lumber, and strand board. Air was drawn through a slot from a well-mixed chamber by applying a pressure difference ( j P) of 4 or 10 Pa. Nonvolatile, electrically neutralized particles were generated and introduced into the chamber. The particle penetration factor was determined, for particle sizes 0.02-7 w m, as the ratio of the particle concentration downstream of the slot to that in the chamber. Particle size and crack height were the two main factors that governed fractional particle penetration. Consistent with prior modeling results, the penetration factor was nearly unity for particles of diameter 0.1-1.0 w m at S 0.25 mm crack height and j P of S 4 Pa. Particle penetration diminished for larger and smaller particles and for cracks with significant surface roughness and irregular geometry.

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Crossref · 10.1080/02786820300927

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13 of 13 references verified0 citation errors · 0 not checkable

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  • Once in the air, PFAAs can travel far and settle into water and soil through wet and dry deposition.

    “Once in the air, PFAAs, which break down very slowly, can travel far and settle into water and soil through wet and dry deposition [1,95].”

    From Industrial Applications, Environmental Fate, Human Exposure, and Health Effects of PFAS (2025) · cites this paper as [95]

    The Introduction discusses ambient particles entering buildings, and Results and Discussion describes particle deposition on crack surfaces. Searches for PFAAs, long-range atmospheric transport, and wet or dry deposition found no passage addressing their movement into water or soil. (LLM, conf=0.77)

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Research works printed but not linked: 1

  1. Chastain, J. P., Colliver, D. G., and Winner, P. W., Jr. (1987). Computation of Discharge Coefficients for Laminar Flow in Rectangular and Circular Opening, ASHRAE Trans. 27:2259-2283.

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Authors
Liu, D.-L., & Nazaroff, W. W.
Affiliations
  • University of California, Berkeley (US)
  • Lawrence Berkeley National Laboratory (US)
Venue
Aerosol Science and Technology
Published
2003-07
Volume
37
Issue
7
Pages
565-573
ISSN
  • 0278-6826 (ISSN-L)
  • 1521-7388
OpenAlex
W2093220872
Cited by
215
References
13
Citations by year
2026: 3 · 2025: 13 · 2024: 11 · 2023: 11 · 2022: 12 · 2021: 16 · 2020: 13 · 2019: 15 · 2018: 10 · 2017: 7 · 2016: 8 · 2015: 10 · 2014: 9 · 2013: 13 · 2012: 13
FWCI
4.40
Type
journal article
Language
en
Open access
Locations
  • Aerosol Science and Technology (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • U.S. Department of Energy (DE-AC03-?, AC03-76SF00098, DEAC03-76SF00098)
  • Office of Research and Development
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Indoor Air Quality and Microbial Exposure
  • Physical Sciences › Environmental Science › Environmental Engineering › Wind and Air Flow Studies
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Air Quality and Health Impacts
Keywords
particle penetration, building cracks, building envelope, indoor air quality, particle size, pressure difference, building materials, surface roughness

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