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University of Nebraska–Lincoln

UNL Extension in Lancaster County

Home Environment

October is National Indoor Air Quality Month

Submitted by Lorene Bartos, UNL Extension Educator

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October is Home Indoor Air Quality and Awareness Month. Has your home had it yearly checkup? If not, this is a good time to do the check up. Most American’s spend a majority of their time indoors especially in the fall and winter months. How healthy is the air you are breathing? Research has found in homes across America, the quality of indoor air can be worse than outdoor air. Many homes are being built and remodeled tightly without regard to the factors that assure fresh and healthy indoor air.

Some of the common issues causing indoor air quality problems are:


Radon — radioactive gas from the soil and rock beneath and around the foundation; ground water wells; and some building materials.

* Test your home for radon.


Environmental Tobacco Smoke — produces particulates, combustion products and formaldehyde.

* Don’t smoke inside the home.


Moisture and Biologicals ( molds, mildew, dust mites) — sources include excessive humidity levels, poorly-maintained humidifiers and air-conditioners, and inadequate ventilation.

* Check the home for any moisture leaks and maintain humidifiers, heating and conditioning units.


Lead — sources include lead-based paint dust from removing paint by sanding, scraping and burning.

* If your home was built before 1978 it may have peeling or chipping paint in window areas.


Combustion Products including Carbon Monoxide — sources include unvented fossil-fuel space heaters, unvented gas stoves and ovens and “back drafting” from furnaces and water heaters.

* Install a carbon monoxide alarm in your home.


Asbestos — most homes more than 30 years old are likely to have asbestos. Sources include deteriorating, damaged or disturbed pipe insulation, fireproofing or acoustical material and floor tiles.

* Take special care when remodeling or removing these items.


Household Products and Furnishings — volatile organic compounds from paints, solvents, air fresheners, hobby supplies, aerosol sprays, adhesives and fabric additives used in carpeting and furniture.

* Read all labels and use products according to directions and make sure there is proper ventilation when using these items. Have new carpet unrolled and aired out at the store before having it laid in your home.


Check your home for possible hazardous and take the precautions to keep your home healthy.

Follow these suggestion to keep your home healthy.


  • Change air filters every three months.
  • Consider allergy air filters.
  • Have air ducts cleaned.
  • Dust and vacuum twice a month.
  • Make sure carbon monoxide detectors are working.
  • Open windows as much as possible.
  • Reduce use of cleaning supplies and chemical sprays.
  • Run bathroom exhaust fan while taking baths and showers.
  • Run the kitchen rangehood exhaust fan while cooking.
  • Exhaust the clothes dryer to the outside.

It is up to you to have a healthy home, by being aware of the things that can cause problems, proper action to prevent illness and other problems.


Ask Lorene

(This resource was updated October 2008 and appeared in the Lincoln Journal Star Newspaper Sunday edition. For information on reproducing this article or using any photographs or graphics, read the Terms of Use statement)

Contact Information

University of Nebraska-Lincoln in Lancaster County
Web site: lancaster.unl.edu
444 Cherrycreek Road, Suite A, Lincoln, NE 68528 | 402-441-7180