01199naa a2200181 a 450000100080000000500110000800800410001910000240006024500790008426000090016352006820017265000170085465300080087165300240087970000180090370000180092177300780093919323682015-02-20       2012    bl uuuu     u00u1 u    #d1 aMAGALHAES, W. L. E.  aField testing of CCA-treated Brazilian spotted gum.h[electronic resource]  c2012  aField tests were used to evaluate the durability of fenceposts treated with 6.5 kg of chromated copper arsenate (CCA) per m3 of wood. Decay was assessed by qualitative visual analysis and by changes in the chemical structure of the wood. Leaching of CCA from treated fencepost was evaluated by atomic absorption spectroscopy. Moreover, extractives and the acid insoluble lignin were quantified. Treated wood was in perfect condition after 6 yr, in contrast to the untreated wood. Percentages of extractives and lignin increased in the untreated decayed wood. Cr and Cu both migrated from wood to soil, but the concentrations were below those allowed by local environmental law.  aLixiviação  aCCA  aQuímica da madeira1 aMATTOS, B. D.1 aMISSIO, A. L.  tInternational Biodeterioration & Biodegradationgv. 74, p. 124-128, 2012.