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Journal article
Overview of HOMEChem: House Observations of Microbial and Environmental Chemistry
Environmental science--processes & impacts, v 21(8), pp 1280-1300
14 Aug 2019
PMID: 31328749
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The House Observations of Microbial and Environmental Chemistry (HOMEChem) study is a collaborative field investigation designed to probe how everyday activities influence the emissions, chemical transformations and removal of trace gases and particles in indoor air. Sequential and layered experiments in a research house included cooking, cleaning, variable occupancy, and window-opening. This paper describes the overall design of HOMEChem and presents preliminary case studies investigating the concentrations of reactive trace gases, aerosol particles, and surface films. Cooking was a large source of VOCs, CO
2
, NO
x
, and particles. By number, cooking particles were predominantly in the ultrafine mode. Organic aerosol dominated the submicron mass, and, while variable between meals and throughout the cooking process, was dominated by components of hydrocarbon character and low oxygen content, similar to cooking oil. Air exchange in the house ensured that cooking particles were present for only short periods. During unoccupied background intervals, particle concentrations were lower indoors than outdoors. The cooling coils of the house ventilation system induced cyclic changes in water soluble gases. Even during unoccupied periods, concentrations of many organic trace gases were higher indoors than outdoors, consistent with housing materials being potential sources of these compounds to the outdoor environment. Organic material accumulated on indoor surfaces, and exhibited chemical signatures similar to indoor organic aerosol.
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Details
- Title
- Overview of HOMEChem: House Observations of Microbial and Environmental Chemistry
- Creators
- D. K. Farmer - Colorado State UniversityM. E. Vance - University of Colorado BoulderJ. P. D. Abbatt - Department of Chemistry, University of Toronto, Toronto, Canada M5S 3H6A. Abeleira - Colorado State UniversityM. R. Alves - University of California, San DiegoC. Arata - University of California, BerkeleyE. Boedicker - Colorado State UniversityS. Bourne - The University of Texas at AustinF. Cardoso-Saldaña - The University of Texas at AustinR. Corsi - The University of Texas at AustinP. F. DeCarlo - Drexel UniversityA. H. Goldstein - University of California, BerkeleyV. H. Grassian - University of California, San DiegoL. Hildebrandt Ruiz - Center for Energy and Environmental Resources, The University of Texas at Austin, Austin, USA 78758J. L. Jimenez - Cooperative Institute for Research in Environmental SciencesT. F. Kahan - Syracuse UniversityE. F. Katz - Drexel UniversityJ. M. Mattila - Colorado State UniversityW. W. Nazaroff - University of California, BerkeleyA. Novoselac - The University of Texas at AustinR. E. O'Brien - Department of Chemistry, College of William and Mary, Williamsburg, USA 23185V. W. Or - University of California, San DiegoS. Patel - University of Colorado BoulderS. Sankhyan - University of Colorado BoulderP. S. Stevens - Indiana UniversityY. Tian - University of California, BerkeleyM. Wade - The University of Texas at AustinC. Wang - University of TorontoS. Zhou - Syracuse UniversityY. Zhou - Colorado State UniversityLawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Details
- Environmental science--processes & impacts, v 21(8), pp 1280-1300
- Publisher
- Royal Society of Chemistry
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Surgery
- Web of Science ID
- WOS:000481429100004
- Scopus ID
- 2-s2.0-85070806376
- Other Identifier
- 991019167530204721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Analytical
- Environmental Sciences