Indoor Air Quality

Most people are aware that outdoor air pollution can damage their health but many do not know that indoor air pollution can also have significant health effects.

Environmental Protection Agency studies of human exposure to air pollutants indicate that indoor levels of pollutants may be 2-5 times, and occasionally more than 100 times, higher than outdoor levels. These levels of indoor air pollutants may be of particular concern because most people spend about 90% of their time indoors. The EPA estimates that 60 percent of the buildings in the U.S.A. have poor indoor air quality.

It takes several disciplines to properly evaluate indoor air quality, including mechanical engineering, building construction expertise, and industrial hygiene.

FES’s staff combines the services to accurately evaluate the indoor air quality of any building:

  • Evaluations of existing HVAC system’s design and operation
  • Building occupant studies evaluating symptoms and complaints
  • Air sampling for specific compounds, when indicated
  • Implementation of corrective action plans and prevention programs
FES’s professional consultants work closely with building owners and facility managers to identify and solve indoor air quality problems before symptoms and health problems arise.
Company Headquarters:
Edwardsville, IL
Offices in :
Carbondale, IL
Springfield, IL

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