Wood is treated with synthetic chemicals such as chromate copper arsenate
(CCA), pentachlorophenol, tri-butyl-tin oxide and creosote.
But today's growing concerns about the environmental impact of preservative chemicals, such as chromated copper arsenate
, used to treat wood against insects got Agricultural Research Service entomologists Mary L.
This article reports the durability of longleaf pine (Pinus palustris) posts pressure treated with ammoniacal copper arsenate
(ACA), chromated copper arsenate
(CCA), creosote, or pentachlorophenol and exposed for 50 years in southern Mississippi.
If your deck was built before 2004, it could have been made with chromated copper arsenate
, which contains arsenic.
Older pallets could have been pressure treated with chromated copper arsenate
(CCA), which has been phased out for many residential uses.
For many years, most outdoor structures were built with pressure-treated wood that had been soaked in chromated copper arsenate
They are treated with pentachlorphenol, chromated copper arsenate
, creosote or copper azole with severe environmental consequences.
The site became contaminated after decades-long wood-treating activities using chromated copper arsenate
Abstract Pressure-treated lumber available for residential applications had been changed from chromated copper arsenate
(CCA) treatment to Cu-amine formulations (since January 2004).
Leaching of chromate copper arsenate
wood preservatives: A review.
Wolman AG has a new wood preservative for above-ground decking, fences and residential projects that is fully organic and contains no metals, replacing chromium and copper arsenate
ASSESSMENT OF CHROMATE COPPER ARSENATE
IN TREATED WOOD.