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I was planning on building my outdoor enclosure out of pressure treated wood, but have read contradictory information on it's toxicity to animals. Some sites state that the new pressure treated wood does not leach chemicals. It appears that the new wood contains chromium, which binds the arsenic and copper and doesn't let them leach out. The old wood only contains copper and arsenic. Other sites and some reptile owners on forums say that even the new stuff is bad. Look at this link. Any experiences with it?
http://www.uri.edu/ce/factsheets/sheets/chemwood.html
http://www.uri.edu/ce/factsheets/sheets/chemwood.html