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The chemical assessment of surfaces and air (CASA) study: using chemical and physical perturbations in a test house to investigate indoor processes.
Farmer, Delphine K; Vance, Marina E; Poppendieck, Dustin; Abbatt, Jon; Alves, Michael R; Dannemiller, Karen C; Deeleepojananan, Cholaphan; Ditto, Jenna; Dougherty, Brian; Farinas, Olivia R; Goldstein, Allen H; Grassian, Vicki H; Huynh, Han; Kim, Deborah; King, Jon C; Kroll, Jesse; Li, Jienan; Link, Michael F; Mael, Liora; Mayer, Kathryn; Martin, Andrew B; Morrison, Glenn; O'Brien, Rachel; Pandit, Shubhrangshu; Turpin, Barbara J; Webb, Marc; Yu, Jie; Zimmerman, Stephen M.
Afiliação
  • Farmer DK; Department of Chemistry, Colorado State University, Fort Collins, CO, USA. Delphine.Farmer@colostate.edu.
  • Vance ME; Department of Mechanical Engineering, University of Colorado, Boulder, CO, USA. Marina.Vance@colorado.edu.
  • Poppendieck D; National Institute of Standards and Technology, Gaithersburg, MD, USA.
  • Abbatt J; Department of Chemistry, University of Toronto, Toronto, ON, Canada.
  • Alves MR; Department of Environmental Science, Policy and Management, University of California Berkeley, Berkeley, CA, USA.
  • Dannemiller KC; Department of Civil, Environmental, and Geodetic Engineering, Division of Environmental Health Sciences, The Ohio State University, Columbus, OH, USA.
  • Deeleepojananan C; Sustainability Institute, The Ohio State University, Columbus, OH, USA.
  • Ditto J; Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA.
  • Dougherty B; Department of Chemistry, University of Toronto, Toronto, ON, Canada.
  • Farinas OR; National Institute of Standards and Technology, Gaithersburg, MD, USA.
  • Goldstein AH; Department of Civil, Environmental, and Geodetic Engineering, Division of Environmental Health Sciences, The Ohio State University, Columbus, OH, USA.
  • Grassian VH; Department of Environmental Science, Policy and Management, University of California Berkeley, Berkeley, CA, USA.
  • Huynh H; Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA.
  • Kim D; Department of Chemistry, University of Toronto, Toronto, ON, Canada.
  • King JC; Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA.
  • Kroll J; Department of Civil, Environmental, and Geodetic Engineering, Division of Environmental Health Sciences, The Ohio State University, Columbus, OH, USA.
  • Li J; Massachusetts Institute of Technology, Cambridge, MA, USA.
  • Link MF; Department of Chemistry, Colorado State University, Fort Collins, CO, USA. Delphine.Farmer@colostate.edu.
  • Mael L; National Institute of Standards and Technology, Gaithersburg, MD, USA.
  • Mayer K; Department of Mechanical Engineering, University of Colorado, Boulder, CO, USA. Marina.Vance@colorado.edu.
  • Martin AB; Department of Chemistry, Colorado State University, Fort Collins, CO, USA. Delphine.Farmer@colostate.edu.
  • Morrison G; Department of Mechanical Engineering, University of Colorado, Boulder, CO, USA. Marina.Vance@colorado.edu.
  • O'Brien R; Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
  • Pandit S; Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, MI, USA.
  • Turpin BJ; Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, USA.
  • Webb M; Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
  • Yu J; Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA.
  • Zimmerman SM; Department of Chemistry, University of Toronto, Toronto, ON, Canada.
Environ Sci Process Impacts ; 2024 Jul 02.
Article em En | MEDLINE | ID: mdl-38953218
ABSTRACT
The Chemical Assessment of Surfaces and Air (CASA) study aimed to understand how chemicals transform in the indoor environment using perturbations (e.g., cooking, cleaning) or additions of indoor and outdoor pollutants in a well-controlled test house. Chemical additions ranged from individual compounds (e.g., gaseous ammonia or ozone) to more complex mixtures (e.g., a wildfire smoke proxy and a commercial pesticide). Physical perturbations included varying temperature, ventilation rates, and relative humidity. The objectives for CASA included understanding (i) how outdoor air pollution impacts indoor air chemistry, (ii) how wildfire smoke transports and transforms indoors, (iii) how gases and particles interact with building surfaces, and (iv) how indoor environmental conditions impact indoor chemistry. Further, the combined measurements under unperturbed and experimental conditions enable investigation of mitigation strategies following outdoor and indoor air pollution events. A comprehensive suite of instruments measured different chemical components in the gas, particle, and surface phases throughout the study. We provide an overview of the test house, instrumentation, experimental design, and initial observations - including the role of humidity in controlling the air concentrations of many semi-volatile organic compounds, the potential for ozone to generate indoor nitrogen pentoxide (N2O5), the differences in microbial composition between the test house and other occupied buildings, and the complexity of deposited particles and gases on different indoor surfaces.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article