Wood preservatives are frequently used inside houses. In several cases impregnated wood, particularly when used in crawlspaces or other near-ground constructions, has been found to be a source of odor. Mold fungi, soft rot fungi actinomycetes or bacteria growing on impregnated wood are possible producers of the odor. Analyses of volatile emissions from impregnated wood with odor and pure cultures of the soft rot fungus Phialophora fastigiata were made with diffusive sampling on Tenax TA, thermal desorption and capillary GC-MS. 2-methylbutanol was found among compounds emitted from impregnated wood with odor taken from a house with odor. Among compounds produced by Phialophora fastigiata octanoic acid and 2-methylbutanol were found.

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