[EMERGING]Emerging
Dust fungi and endotoxin measured against respiratory symptoms in a water-damaged office building
In a study of occupants of one water-damaged office building, both fungal and endotoxin measures in dust were reported in dose-response association with respiratory symptoms, with an interaction between them.
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This library reports what studies found. An entry describes a study's design, its findings in its own terms, and its limits. Nothing here is a claim about what a Sage Co. home does, delivers, or prevents.
Last reviewed August 30, 2026.
What they studied
- Eight hundred eighty-eight occupants of a water-damaged office building.
- Floor and chair dust sampling analyzed for fungi, ergosterol, and endotoxin.
- Questionnaire assessment of respiratory symptoms, analyzed by exposure quartile.
What they found
- Dose-response relationships were reported for both endotoxin and fungal measures with respiratory symptoms.
- The authors reported that endotoxin modified the association between fungi and symptoms.
- Associations were reported to be stronger when both exposures were considered together.
What this study does not establish
- Cross-sectional study of a single building.
- Dust measures are proxies for inhalation exposure.
- Self-reported symptoms; no clinical diagnosis endpoint.
- This entry reports the study. It is not a statement about any building Sage Co. designs or constructs.
Source
Park J-H, Cox-Ganser JM, Rao C, Kreiss K (2006). Fungal and endotoxin measurements in dust associated with respiratory symptoms in a water-damaged office building. Indoor Air 16(3):192–203.
endotoxindust samplingrespiratoryfield investigation
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