We spend most of our time indoor and mainly at home. Thermal insulation has greatly improved in the last decades, thus leading to deficiency in ventilation and poor indoor air quality. Many studies suggest that there is a link between respiratory diseases and various indoor air pollutants such as moulds, allergens, volatile organic compounds, combustible smoke, house dust mite, radon or asbestos. This article reviews the most common pathogenic pollutants at home as well as their sources and related respiratory diseases. Preventive measures are further presented for every category of contaminant.
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Indoor Air Quality in Multi-Family Housing: Drivers and Interventions.
Curr Environ Health Rep
January 2025
Brandeis University, Waltham, MA, USA.
Purpose Of Review: Indoor air pollution is likely to be elevated in multi-family housing and to contribute to health disparities, but limited studies to date have systematically considered the empirical evidence for exposure differentials between multi-family and single-family housing. Our goal is to separately examine the drivers of residential indoor air pollution, including outdoor air pollution, ventilation and filtration, indoor sources, and occupant activity patterns, using secondhand smoke as a case study to examine the behavioral dimensions of indoor environmental interventions.
Recent Findings: Within studies published from 2018 to 2023, multi-family homes have higher average outdoor air pollution than single-family homes given their more frequent presence in urban and near-roadway settings.
Cotinine-measured secondhand smoke exposure among federal housing assistance recipients without active tobacco or nicotine in the United States: NHANES, 2007-2018.
Nicotine Tob Res
January 2025
U.S. Department of Housing and Urban Development, Office of Policy Development and Research, Washington, DC, United States.
Introduction: The prevalence of cigarette smoking is high among U.S. Department of Housing and Urban Development (HUD) assistance recipients, putting others at risk for secondhand smoke (SHS) exposure.
View Article and Find Full Text PDFEngineering Subnanometric Electronic Interaction between Ru and Mn in Zeolite Boosts Catalytic Oxidation of Dichloromethane.
Environ Sci Technol
January 2025
Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, P. R. China.
Designing catalysts with both activity and stability remains a grand challenge for the removal of chlorinated volatile organic compounds (CVOCs) by catalytic oxidation. Herein, the Ru-Mn subnanometric species encapsulated in ZSM-5 zeolite (RuMn@Z) was synthesized. It shows that the 90% conversion of dichloromethane is as low as 320 °C, which is significantly lower than that of Ru@Z (350 °C) and the impregnation catalyst (RuMn/Z, 355 °C).
View Article and Find Full Text PDFClassroom air quality in a randomized crossover trial with portable HEPA air cleaners.
J Expo Sci Environ Epidemiol
January 2025
Department of Environmental and Occupational Health, Joe C. Wen School of Population & Public Health, University of California, Irvine, CA, USA.
Background: Children living in communities with lower socioeconomic status and higher minority populations are often disproportionately exposed to particulate matter (PM) compared to children living in other communities.
Objective: We assessed whether adding HEPA filter air cleaners to classrooms with existing HVAC systems reduces indoor air pollution exposure.
Methods: From July 2022 to June 2023, using a block randomized crossover trial of 17 Los Angeles Unified School District elementary schools, classroom PM concentrations were monitored and compared for 99 classrooms with HEPA filter air cleaners and 87 classrooms with non-HEPA filter air cleaners.
Monitoring of indoor air quality at a large sailing cruise ship to assess ventilation performance and disease transmission risk.
Sci Total Environ
January 2025
Centre for Safety, Resilience and Protective Security, Fire Safety Engineering Group, School of Computing and Mathematical Sciences, Faculty of Engineering and Science, University of Greenwich, Greenwich SE10 9LS, United Kingdom.
Large passenger ships are characterised as enclosed and crowded indoor spaces with frequent interactions between travellers, providing conditions that facilitate disease transmission. This study aims to provide an indoor ship CO dataset for inferring thermal comfort, ventilation and infectious disease transmission risk evaluation. Indoor air quality (IAQ) monitoring was conducted in nine environments (three cabins, buffet, gym, bar, restaurant, pub and theatre), on board a cruise ship voyaging across the UK and EU, with the study conducted in the framework of the EU HEALTHY SAILING project.
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