title: Effect of post-treatment processing on copper migration from Douglas-fir lumber treated with ammoniacal copper zinc arsenate.
abstract: Migration of heavy metals into aquatic environments has become a concern in some regions of the world. Many wood preservatives are copper based systems that have the potential to migrate from the wood and into the surrounding environment. Some wood treaters have developed "best management practices" (BMPs) that are designed to reduce the risk of migration, but there are few comparative studies assessing the efficacy of these processes. The potential for using various heating combinations to limit copper migration was assessed using ammoniacal coper zinc arsenate treated Douglas-fir lumber. Kiln drying and air drying both proved to be the most effective methods for limiting copper migration, while post-treatment steaming or hot water immersion produced more variable results. The results should provide guidance for improving the BMP processes.
authors: Department of Mathematics, 103 Neil Hall, Washington State University, Pullman, WA 99164, USA. Electronic address: jessie329958@hotmail.com.
authors: Min
authors: M
authors: Ye
authors: Department of Wood Science and Engineering, 230 Richardson Hall, Oregon State University, Corvallis, OR 97331, USA. Electronic address: jeff.morrell@oregonstate.edu.
authors: Jeffrey J
authors: JJ
authors: Morrell
mesh_terms: D001149:Arsenates / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D004784:Environmental Monitoring; D052918:Environmental Restoration and Remediation / Q000379:methods*; D028224:Pseudotsuga; D011891:Rain; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000517:prevention & control*; D014934:Wood / Q000737:chemistry*
chemical_list: D001149:Arsenates; D014874:Water Pollutants, Chemical; D003300:Copper
keywords: Ammoniacal copper zinc arsenate; Best management practices; Douglas-fir; Migration; Preservative treatment