Impacts of synthetic and natural indoor surface finishes on microbial viability

Erica Hartmann*, Jinglin Hu

*Corresponding author for this work

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

Abstract

The objective of this study is to evaluate how synthetic and natural surface finishes, with or without antimicrobial chemical additives, impact microbial viability in the built environment. To simulate a wall surface environment in a typical home or office space, mold-resistant drywall coupons painted with conventional mold-resistant paint, antimicrobial paint, and natural clay paint were inoculated with a synthetic microbial community containing five bacterial strains isolated from indoor dust samples. Microbial viability was monitored for seven days under dry, ambient, and wet treatment conditions. Four of the five isolates selected were shown to be sensitive to exposure to antimicrobial paint, whereas the last was suspected to form endospores to facilitate its survival under environmental stresses. Clay paint and conventional mold-resistant paint selected for different members within the same community. These results will provide meaningful information to guide decisions on interior design. Follow-up research will further investigate the prevalence of antimicrobial resistance in real-world buildings containing antimicrobial surface finishes.

Original languageEnglish (US)
Title of host publication15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
PublisherInternational Society of Indoor Air Quality and Climate
ISBN (Electronic)9781713826514
StatePublished - 2018
Event15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018 - Philadelphia, United States
Duration: Jul 22 2018Jul 27 2018

Publication series

Name15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018

Conference

Conference15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
Country/TerritoryUnited States
CityPhiladelphia
Period7/22/187/27/18

Keywords

  • Antimicrobial paint
  • Green building material
  • Indoor microbiome
  • Microbiology

ASJC Scopus subject areas

  • Pollution

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