Alkaline copper quaternary (ACQ) Type D is one of several compounds currently being used as a chemical preservative to treat wood for prevention of rot and decay. As wood weathers naturally, human exposure to ACQ might occur through dermal contact or incidental ingestion of residues from the wood surface. To understand any potential for health risks from the use of ACQtreated wood, a health-bas...

The wood preservative chromated copper arsenate (CCA) contains hexavalent chromium [Cr(VI)] and the conversion of Cr(VI) to trivalent chromium [Cr(III)] drives fixation of the treatment chemicals to the wood fibers. Since the toxicity of Cr depends on its valence state, an assessment of the Cr species occurring in CCA-treated wood, as well as leachates and ashes from CCA-treated wood, is helpfu...

Size-reduced samples of southern yellow pine dimensional lumber, each treated with one of five different waterborne chemical preservatives, were leached using 18-h batch leaching tests. The wood preservatives included chromated copper arsenate (CCA), alkaline copper quaternary, copper boron azole, copper citrate, and copper dimethyldithiocarbamate. An unpreserved wood sample was tested as well....

Widely used as a wood preservative and also in many polymeric applications for protection against insects and rodents. Copper naphthenate or more specifically copper naphthenate solution which consists of 20% copper naphthenate mixed with white spirits or mineral turps type solvents have been popularly reintroduced in the market as a formulation which is effective in its primary purpose of bein...

Chromated copper arsenate (CCA)-treated wood is a preservative treated wood construction product that grew in use in the 1970s for both residential and industrial applications. Although some countries have banned the use of the product for some applications, others have not, and the product continues to enter the waste stream from construction, demolition and remodeling projects. CCA-treated wo...

This thesis aims to assess the environmental consequences of management strategies for wood waste in Sweden. There is a special focus on separation strategies and in what way they influence environmental aspects related to the presence of heavy metals in the waste. Actors’ incentives and capacity to influence wood waste management are analysed, emphasising the importance of driving forces such ...

Woods that were placed outdoors exposed to UV-induced photodegradation processes which damaged the lignin bonds in wood resulting more susceptible woods against abrasion and weathering. This circumstance led finishing by applying paint surface carried out industries at home level. Some materials not only contribute increasing aesthetics of but also increased wood's resistance harmful microorgan...