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Appearance of polychlorinated biphenyls (PCB) in waste wood
- Schulze, A., Salthammer, T., Marutzky, R.
- European journal of wood and wood products 2003 v.61 no.1 pp. 23-28
- gas chromatography-mass spectrometry, polychlorinated biphenyls, waste wood
- To check the relevance of PCB in waste wood 39 statistically selected samples were tested. The samples were extracted and then analyzed by gaschromatography/mass spectrometry (GC/MS). In the draft versions of the Altholzverordnung of 23.02.2001 and 06.02.2002 the proposed limit value for PCB was referenced to the sum of 6 congeners. In the meantime the German Altholzverordnung was changed to that effect that after summing up the 6 congeners a factor of 5 has to be included. This is equivalent to a reduction of the limit value. The results demonstrate that after multiplication with 5 two of the investigated waste wood samples exceed the limit value of 5 mg/kg. There are no polychlorinated biphenyls detectable in 31 samples and six samples show a content lower than the determination limit, respectively.