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Seasonal formaldehyde concentrations in an office building
American Industrial Hygiene Association Journal
|February 1, 1985
Summary
Formaldehyde emissions from building materials show a seasonal trend, with concentrations doubling in warmer weather compared to colder months. This study monitored formaldehyde levels in an office building to confirm this pattern.
Area of Science:
- Environmental Chemistry
- Indoor Air Quality
Background:
- Formaldehyde is a common volatile organic compound emitted from building materials like paneling and shelving.
- Understanding emission patterns is crucial for assessing indoor air quality and potential health risks.
Purpose of the Study:
- To investigate the seasonal influence on formaldehyde emissions from interior building materials.
- To quantify the difference in formaldehyde concentrations between warm and cold weather conditions.
Main Methods:
- Utilized standard impinger sampling with a bisulfate absorbing solution.
- Employed a dry diffusional formaldehyde monitor for continuous measurement.
- Conducted measurements within a one-story office building environment.
Main Results:
- A clear seasonal trend in formaldehyde concentrations was observed using both monitoring methods.
- Formaldehyde levels in warm weather were approximately double those recorded during cold weather.
- Dry diffusional monitor readings were consistently lower than those obtained via impinger sampling.
Conclusions:
- Seasonal temperature variations significantly impact formaldehyde emissions from building materials.
- Indoor air quality monitoring for formaldehyde should consider seasonal effects.
- Discrepancies between monitoring methods warrant further investigation.