The AIM Study: Airflow Improvements during Meal-prep

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Asthma is one of the most prevalent chronic diseases of childhood. Because children spend many hours indoors at home, interventions to decrease asthma-exacerbating exposures in the home could have profound impacts. In addition, many pollutants, such as fine particulate matter (PM2.5) and Nitrogen dioxide (NO2) have higher levels indoors than outdoors, even in the developed world.  Air pollutants may worsen asthma symptoms through multiple mechanisms, including by directly increasing airways inflammation. Our cutting-edge study will investigate air pollution in homes with both a child with asthma and a gas stove, assessing a cooking ventilation intervention.

We are also training a cohort of local high school youth in environmental health literacy, including guest talks from experts and stakeholders, meetings, brainstorming sessions and air monitoring projects.

AIM Dr. Stephanie Holm Graphic

Study at a Glance:


  • Study Objectives: Measure indoor air pollution in relation to gas stove use, and evaluate the impacts of cooking ventilation on air pollution levels and asthma symptoms. 
  • Geographic Area: Participant's homes in Richmond, CA
  • Participants: 60 households with children who have asthma
  • Study Tools: Indoor air quality monitors, stove ventilation flow monitor, cooking temperature monitor, spirometry, exhaled nitric oxide, and questionnaires.
  • Partners: Contra Costa Health Services, Hilltop Pediatrics and local youth research assistants 
  • Principal Investigators: Dr. John Balmes
  • Collaborators: Dr. Stephanie Holm, Dr. Brett Singer, Mr. James Nolan, Dr. Kim Harley, Dr. Mi-Suk Kang-Dufour
  • Funder: National Institutes of Health
  • Contact: Dr. Stephanie Holm- stephaniemholm@berkeley.edu