Guest guest Posted February 27, 2004 Report Share Posted February 27, 2004 deborah barrie wrote: > > > Treated wood house residents have more to worry about than tests kits > for the wood. They need air samples and furnace filters tested. Anyway > the latest studies show that you can test your wood one day and find a > dangerous level of arsenic and another day it will read safe. It > appears to depend upon many conditions but after an acid rain would be > one of the better times to test. Soil around the house, directly below > where leachate would fall would be another good place to look. Find a > spot where there has been little disturbance of the soil and test in > the top two inches. Arsenic moves very little beyond that without help > like raking or heavy foot traffic. Often when someone wishes to show a > clean test they will go down in the soil about 10 or 12 inches and out > from the structure a foot or more. This would only show containation > from natural sources . This way they can reassure you that you are > safe. Testing in the proper place at the proper depth is essential to > find contamination from leachate. > If that MOE report I have posted on my website if a clear picture of > what is in cca wood we need to start concerning ourselves alot more > with off gassing than has ever been previously considered. Intake air > pipes could be drawing in arsine gas and poisoning people in low > levels over long periods of times. Furnace filters, air filters and > air samples will be most valuable in finding that kind of contamination. > As for sealers I am aware of a study by an American government agency > finding sealers increased the toxicity of the wood. It was reported to > me by someone I trust very much who was working with the government on > a clean up issue. When they asked for the study to give me they were > told that they were not supposed to be discussing it. I had already > questioned the Canadian government on the tests they had done on the > safety of sealers. They said they had never done any. Oil based > sealers have been found effective for stopping the leaching for > anywhere from a few months to two years depending on varying > conditions. Acid based sealers would cause more leaching . Never sand, > power wash or use deck cleaners or brighteners or chlorine products on > cca wood as they will also cause the arsenic to leach more. It is very > hard to seal a surface you can not prepare properly so in my opinion > sealing seems riskier all the time. > I wish I had good news but I don't. CCA wood was never meant for such > applications that it has come to be used for. It was most certainly > never meant to side your house with. I would run the tests and if I > found contamination I would seek legal help. > I have documents available from my access to info files if you are > interested. > The human spirit is a wonderful source of power and healing. Those of > us who are toxic in a world that has little to offer must grab a hold > of that power. > > Deborah > > >Deborah Elaine Barrie >deborahbarrie@... >http://www.noccawood.ca >subscribe to list service at website > Quote Link to comment Share on other sites More sharing options...
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