Indoor Air Quality and Microbial Exposure

People spend roughly 90 percent of their time indoors, yet the air inside homes, offices, and schools routinely contains a complex mixture of biological and chemical contaminants—fungal spores, bacteria-laden bioaerosols, formaldehyde off-gassing from building materials, and dozens of other volatile organic compounds—that can accumulate to concentrations well above outdoor levels. Research in this area investigates how these exposures, individually and in combination, contribute to respiratory disease, allergic sensitization, sick building syndrome, and longer-term mutagenic risk, with ventilation rate emerging as one of the most consequential variables determining whether contaminants disperse or concentrate. A central open question is how to model the cumulative health burden of low-level, chronic co-exposure to multiple agents when standard toxicological methods are designed around single-compound dose-response relationships. Researchers are also working to clarify which microbial communities—not just total bioaerosol load—drive adverse outcomes, as the same overall spore count can carry very different health implications depending on species composition and the mycotoxins or endotoxins those organisms produce.

Works

50,920

Total citations

626,934

Keywords

Indoor Air QualityAirborne MicroorganismsVolatile Organic CompoundsHealth EffectsMold ExposureVentilation Rates