Ventilation, indoor air quality, and health in homes undergoing weatherization

Ventilation standards, health, and indoor air quality have not been adequately examined for residential weatherization. This randomized trial showed how ASHRAE 62-1989 (n=39 houses) and ASHRAE 62.2-2010 (n=42 houses) influenced ventilation rates, moisture balance, indoor air quality, and self-reported physical and mental health outcomes. Average total airflow was nearly twice as high for ASHRAE 62.2-2010 (79 vs. 39 cfm). Volatile organic compounds, formaldehyde and carbon dioxide were all significantly reduced for the newer standard and first-floor radon was marginally lower, but for the older standard, only formaldehyde significantly decreased. Humidity in the ASHRAE 62.2-2010 group was only about half that of the ASHRAE 62-1989 group using the moisture balance metric. Radon was higher in the basement but lower on the first floor for ASHRAE 62.2-2010. Children in each group had fewer headaches, eczema, and skin allergies after weatherization and adults had improvements in psychological distress. Indoor air quality and health improve when weatherization is accompanied by an ASHRAE residential ventilation standard, and the 2010 ASHRAE standard has greater improvements in certain outcomes compared to the 1989 standard. Weatherization, home repair, and energy conservation projects should use the newer ASHRAE standard to improve indoor air quality and health.

[1]  J. Lucas,et al.  Physical and mental health characteristics of U.S.- and foreign-born adults: United States, 1998-2003. , 2006, Advance data.

[2]  William B. Rose,et al.  Temperature and humidity measurements in 71 homes participating in an IAQ improvement program , 2010 .

[3]  J. Samet,et al.  Ventilation rates and health: multidisciplinary review of the scientific literature. , 2011, Indoor air.

[4]  J Gusdorf,et al.  Health in occupants of energy efficient new homes. , 2004, Indoor air.

[5]  Patricia N. Pastor,et al.  Identifying emotional and behavioral problems in children aged 4-17 years: United States, 2001-2007. , 2012, National health statistics reports.

[6]  D. Steck.  Residential radon risk assessment: how well is it working in a high radon region? , 2005 .

[7]  Mark J. Mendell,et al.  Non‐Specific Symptoms In Office Workers: A Review And Summary Of The Epidemiologic Literature , 1993 .

[8]  W. Fisk,et al.  Energy-related indoor environmental quality research: A priority agenda , 2002 .

[9]  R. Kessler,et al.  Short screening scales to monitor population prevalences and trends in non-specific psychological distress , 2002, Psychological Medicine.

[10]  C. Daskalakis,et al.  Dampness and mold in the home and depression: an examination of mold-related illness and perceived control of one's home as possible depression pathways. , 2007, American journal of public health.

[11]  David E. Jacobs,et al.  Watts-to-Wellbeing: does residential energy conservation improve health? , 2014 .

[12]  T. Heeren,et al.  Heat or Eat: The Low Income Home Energy Assistance Program and Nutritional and Health Risks Among Children Less Than 3 Years of Age , 2006, Pediatrics.

[13]  Stephen Margolis,et al.  A systematic review of housing interventions and health: introduction, methods, and summary findings. , 2010, Journal of public health management and practice : JPHMP.

[14]  G Murphy,et al.  Airborne spread of measles in a suburban elementary school. , 1978, American journal of epidemiology.

[15]  William J. Fisk,et al.  A priority agenda for energy-related indoor environmental quality research , 2002 .

[16]  David W. Smith,et al.  Building-associated risk of febrile acute respiratory diseases in Army trainees. , 1988, JAMA.

[17]  T. Blakely,et al.  Effect of insulating existing houses on health inequality: cluster randomised study in the community , 2007, BMJ : British Medical Journal.