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Issue 5, 2001
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A high-performance liquid chromatography (HPLC) method was developed for the detection of extracted gallic acid in wood dust. Gallic acid is a polyphenol present in carcinogenic oak wood dust, but not in beech, ash, pine or spruce dusts, as confirmed by HPLC analyses. The method involved the extraction of gallic acid from the oak dust, followed by liquid chromatographic analysis. The correlation coefficient for the share of oak dust vs. the gallic acid concentration of wood dust was 0.995. The method was tested with oak wood dust samples collected on polycarbonate membrane filters during an 8 h workshift in a floor board factory, where the dust content of the air samples was determined gravimetrically. The oak dust and the gallic acid concentrations varied from 0.2 to 13.8 mg m−3 and from 0.03 to 3.8 µg m−3, respectively. These parameters were linearly correlated with a correlation coefficient of 0.95. The airborne gallic acid determination is a useful technique to confirm occupational exposure to oak wood dust, a recognized human carcinogen.

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Article information

05 Jul 2001
16 Aug 2001
First published
12 Sep 2001

J. Environ. Monit., 2001,3, 509-511
Article type

Determination of gallic acid in wood dust as an indicator of oak content

P. Mämmelä, A. Tuomainen, H. Savolainen, J. Kangas, T. Vartiainen and L. Lindroos, J. Environ. Monit., 2001, 3, 509
DOI: 10.1039/B105998J

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