The objecteve of this experiment is to get a knowledge that, when CCA treated wood wastes were buried in a soil as a disposal, the soil would be or not be contaminated by the components of CCA preservatives in wood wastes. The specimens used were cutting logs and chips made of the CCA treated electric pole waste. The soil was buried to the 15 cm depth and the log specimens were set in the soil for parallel direction to the ground line. The chips specimens were placed in the bottomless boxes which were set on the ground floor at 20 cm depth under the ground line. The soil samples were taken from where were directly contacted with the specimens and from where were the nearest places apart from the specimens and were analyzed for CCA components after 6 months and after 6 years since these installation. The results were summerlized as follows. The levels of CCA components in the soil where were directly contacted with the specimens were slightly increased. However that in the soil where were collected over 5 cm far from the specimens were not increased. Therefore, the CCA components in the woods were not contaminated to the soil where were over 5 cm far from the specimens. According to our results, we can consider that the burial method for the disposal of CCA treated wood wastes was an avalable method and also practical possiblity to prevent from environmental contamination.

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