Santa Barbara County Air Pollution Control District

Indoor Air Quality and Health

Household products can harm indoor air qualityThe District does not regulate indoor air quality, or indoor air quality devices. The following is provided for informational purposes only.

Indoor air quality refers to the quality of air we breathe inside our homes, our offices, our schools and other buildings. The household products we use every day as well as appliances, furniture, and building materials emit gasses that can become trapped indoors. Many of these gasses are pollutants that are harmful to health.


Common Sources of Indoor Air Pollution

Fuel-burning and gas appliances
Carbon monoxide is produced by household appliances that burn fuel including oil or gas furnaces, gas water heaters, space heaters, gas ranges and ovens, fireplaces, and wood-burning stoves. Learn more on this page about carbon monoxide and health.

Fireplace burning
Breathing wood smoke reduces lung function, aggravates heart and lung diseases, and can trigger asthma. Visit this webpage to learn about steps to create a cleaner, safer burning fireplace for you and your neighbors.

Building materials
Asbestos is a lightweight fiber used in construction materials to provide insulation and as fire resistance. What makes asbestos useful in construction though, also makes it very harmful to human health. When broken or crushed, asbestos particles become airborne and if they are inhaled they can become permanently lodged in lungs and tissues. In fact, asbestos has proven so dangerous to human health that many asbestos products are now banned. Asbestos can still be found, though, in many buildings and homes. Go to this webpage to find out how you can detect asbetos and prevent it from causing harm.

Pressed wood
Formaldehyde is a chemical often used as an adhesive in pressed wood products such as particleboard, hardwood plywood paneling, and fiberboard.  It is a colorless but strong-smelling gas that can cause watery eyes, burning in the throat, nausea, and respiratory problems. Formaldehyde is particularly a concern for people with asthma because it can trigger attacks. Visit the Environmental Protection Agency's webpage on formaldehyde and how to reduce exposure to learn more. 

Household products
Volatile Organic Compounds (VOCs) are frequently found in household products such as such as paints, cleaning supplies and glues, and in furniture and office equipment. Learm more on the Environmental Protection Agency's webpage on VOCs.

Lead-based paint
Lead affects almost every system in the body. Children are especially vulnerable because lead exposure can impact physical and mental development. Lead is mostly found in lead-based paints, but can also be found in contaminated soil and drinking water. Visit the Envrionmental Protection Agency webpage to learn more about how to reduce exposure.

Smoking
Cigarettes contain dozens of harmful chemicals which are released into the atmosphere when smoked. Secondhand smoke can cause asthma and respiratory infections in children. Learn more about how to create a healthy, smoke-free home at the Envrionmental Protection Agency website.

Strategies for Improving Indoor Air Quality

  • Control sources of pollution: The most effective—and usually the most cost-effective—way to improve indoor air quality is to eliminate or reduce sources of air pollution. See the links above to find out specific methods for controlling sources of air pollution that you think are a problem in your home or office. 
  • Improve ventilation: Increasing circulation between indoor and outdoor air will lower the concentration of indoor pollutant. This can be achieved by opening windows and doors and using attic fans or window air conditioners. It is especially important to take these steps when you amid activities that can generate a large amount of pollutants in a short period of time. Examples of these activities are painting, remodeling, or using fuel-burning or gas appliances.
  • Use air cleaners: There are many different kinds of air purifiers and cleaners available to reduce specific indoor air pollution problems. However, it is important to buy an air cleaner that does not emit harmful ozone. Learn more at this webpage on air purifiers.

Wood Burning Stove

Learn More

Introduction to indoor air quality by the Environmental Protection Agency

California Air Resources Board website on indoor air quality and personal exposure assessment program