An evaluation of the impact of flooring types on exposures to fine and coarse particles within the residential micro-environment using CONTAM

Typical resuspension activities within the home, such as walking, have been estimated to contribute up to 25% of personal exposures to PM10. Chamber studies have shown that for moderate walking intensities, flooring type can impact the rate at which particles are re-entrained into the air. For this study, the impact of residential flooring type on incremental average daily (24 h) time-averaged exposure was investigated. Distributions of incremental time-averaged daily exposures to fine and coarse PM while walking within the residential micro-environment were predicted using CONTAM, the multizone airflow and contaminant transport program of the National Institute of Standards and Technology. Knowledge of when and where a person was walking was determined by randomly selecting 490 daily diaries from the EPA’s consolidated human activity database (CHAD). On the basis of the results of this study, residential flooring type can significantly impact incremental time-averaged daily exposures to coarse and fine particles (α=0.05, P<0.05, N=490, Kruskal–Wallis test) with high-density cut pile carpeting resulting in the highest exposures. From this study, resuspension from walking within the residential micro-environment contributed 6–72% of time-averaged daily exposures to PM10.

[1]  C. rd,et al.  Epidemiology of fine particulate air pollution and human health: biologic mechanisms and who's at risk? , 2000 .

[2]  Andrea R. Ferro,et al.  Resuspension of Dust Particles in a Chamber and Associated Environmental Factors , 2008 .

[3]  W. Mark Pierce,et al.  Air Quality On Commercial Aircraft , 1999 .

[4]  Jonathan Thornburg,et al.  THE RESEARCH TRIANGLE PARK PARTICULATE MATTER PANEL STUDY: PM MASS CONCENTRATION RELATIONSHIPS , 2003 .

[5]  Tracy L. Thatcher,et al.  Effects of room furnishings and air speed on particle deposition rates indoors , 2002 .

[6]  Brian J. Polidoro,et al.  CONTAM User Guide and Program Documentation Version 3.2 , 2015 .

[7]  T Lindgren,et al.  Cabin air quality: indoor pollutants and climate during intercontinental flights with and without tobacco smoking. , 2002, Indoor air.

[8]  Kevin Ashley,et al.  Evaluation of a Standardized Micro-Vacuum Sampling Method for Collection of Surface Dust , 2007, Journal of occupational and environmental hygiene.

[9]  L. Hildemann,et al.  The effects of human activities on exposure to particulate matter and bioaerosols in residential homes. , 2009, Environmental science & technology.

[10]  J. Creason,et al.  The 1998 Baltimore Particulate Matter Epidemiology–Exposure Study: Part 1. Comparison of ambient, residential outdoor, indoor and apartment particulate matter monitoring , 2000, Journal of Exposure Analysis and Environmental Epidemiology.

[11]  P. Koutrakis,et al.  Characterization of Indoor Particle Sources Using Continuous Mass and Size Monitors , 2000, Journal of the Air & Waste Management Association.

[12]  L. Wallace,et al.  Indoor particles: a review. , 1996, Journal of the Air & Waste Management Association.

[13]  THOMAS MCCURDY,et al.  The National Exposure Research Laboratory's Consolidated Human Activity Database* , 2000, Journal of Exposure Analysis and Environmental Epidemiology.

[14]  Dale Zimmerman,et al.  House Dust Collection Efficiency of the High Volume Small Surface Sampler on Worn Carpets , 2006, Journal of occupational and environmental hygiene.

[15]  W. H. Engelmann,et al.  The National Human Activity Pattern Survey (NHAPS): a resource for assessing exposure to environmental pollutants , 2001, Journal of Exposure Analysis and Environmental Epidemiology.

[16]  A. Peters,et al.  Particulate Matter Air Pollution and Cardiovascular Disease: An Update to the Scientific Statement From the American Heart Association , 2010, Circulation.

[17]  Paul J. Lioy,et al.  Effects of Environmental and Carpet Variables on Vacuum Sampler Collection Efficiency , 1995 .

[18]  Delbert J. Eatough,et al.  Environmental tobacco smoke in commercial aircraft , 1992 .

[19]  Lisa Dawn Antonette Bramwell.  An Evaluation of the Impact of Flooring Types and Ventilation Conditions on Exposures to Fine and Coarse Particles within the Residential Micro-Environment using CONTAM , 2013 .

[20]  Andrea R Ferro,et al.  Elevated personal exposure to particulate matter from human activities in a residence , 2004, Journal of Exposure Analysis and Environmental Epidemiology.

[21]  Thomas Stock,et al.  Relationships of Indoor, Outdoor, and Personal Air (RIOPA): part II. Analyses of concentrations of particulate matter species. , 2007, Research report.

[22]  S J Emmerich,et al.  Modeled infiltration rate distributions for U.S. housing. , 2010, Indoor air.

[23]  C. Pope,et al.  Epidemiology of fine particulate air pollution and human health: biologic mechanisms and who's at risk? , 2000, Environmental health perspectives.

[24]  P. Hopke,et al.  Receptor Modeling Assessment of Particle Total Exposure Assessment Methodology Data , 1999 .

[25]  Liangzhu Wang,et al.  AN INTRODUCTION TO THE CFD CAPABILITIES IN CONTAM 3.0 , 2010 .

[26]  Tina Bahadori,et al.  Adoption of an official ISEA glossary , 2005, Journal of Exposure Analysis and Environmental Epidemiology.

[27]  B E Ainsworth,et al.  Compendium of physical activities: an update of activity codes and MET intensities. , 2000, Medicine and science in sports and exercise.

[28]  P J Lioy,et al.  Lead in house dust: relationships between exposure metrics. , 1995, Environmental research.

[29]  Andrea R. Ferro,et al.  Estimating the Resuspension Rate and Residence Time of Indoor Particles , 2008, Journal of the Air & Waste Management Association.

[30]  Jonathan Thornburg,et al.  Resuspension of Particulate Matter from Carpet Due to Human Activity , 2008 .

[31]  L. Sheldon,et al.  The design and field implementation of the Detroit Exposure and Aerosol Research Study , 2009, Journal of Exposure Science and Environmental Epidemiology.

[32]  N. Englert.  Fine particles and human health--a review of epidemiological studies. , 2004, Toxicology letters.

[33]  Greta C Bernatz,et al.  How humans walk: bout duration, steps per bout, and rest duration. , 2008, Journal of rehabilitation research and development.

[34]  C A Clayton,et al.  Particle Total Exposure Assessment Methodology (PTEAM) 1990 study: method performance and data quality for personal, indoor, and outdoor monitoring. , 1993, Journal of exposure analysis and environmental epidemiology.

[35]  Niren L. Nagda,et al.  Measurement of cabin air quality aboard commercial airliners , 1992 .

[36]  Jonathan I Levy,et al.  Predicting residential indoor concentrations of nitrogen dioxide, fine particulate matter, and elemental carbon using questionnaire and geographic information system based data. , 2007, Atmospheric environment.

[37]  A. Ferro,et al.  A comparative study of walking-induced dust resuspension using a consistent test mechanism. , 2014, Indoor air.

[38]  C. Tudor-Locke,et al.  Pedometer-determined step count guidelines for classifying walking intensity in a young ostensibly healthy population. , 2005, Canadian journal of applied physiology = Revue canadienne de physiologie appliquee.