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Indoor and Built Environment, Vol. 10, No. 3-4, 232-237 (2001)
DOI: 10.1177/1420326X0101000317

Analysis of Chemical Markers as a Means of Characterising Airborne Micro-Organisms in Indoor Environments: A Case Study

Lennart Larsson

Department of Medical Microbiology, Dermatology and Infection, University of Lund, Sweden

Pär Fredborn Larsson

Department of Medical Microbiology, Dermatology and Infection, University of Lund, Sweden

Analysis of chemical markers can be done to character ise the microbiological composition of indoor environ ments. Here we describe the use of gas chromatography- tandem mass spectrometry methods to determine mu ramic acid, 3-hydroxy fatty acids and ergosterol, which are, respectively, markers of bacterial biomass, endotox in, and fungal biomass. We also report how these meth ods were applied to determine airborne micro-organ isms in a water-damaged building.


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