Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site whuxle.UUCP Path: utzoo!linus!security!genrad!grkermit!masscomp!clyde!floyd!whuxle!mag From: mag@whuxle.UUCP Newsgroups: net.followup,net.med Subject: Re: Formaldehyde in mobile homes? Message-ID: <218@whuxle.UUCP> Date: Thu, 12-Jan-84 18:06:52 EST Article-I.D.: whuxle.218 Posted: Thu Jan 12 18:06:52 1984 Date-Received: Sat, 14-Jan-84 02:47:43 EST References: <454@orca.UUCP> Organization: Bell Labs, Whippany Lines: 10 A consumer television show I just saw talked about the use of urea- formaldehyde insulation during the 70s. The levels of formaldehyde can reach several times the safe level in poorly ventilated (that is, well-insulated) homes. However, the formaldehyde eventually leaches out of the insulation, and the levels produce decrease by about 50% each year (that is, a 1 year half-life). The show implied that after about 7 or 8 years, the insulation was pretty well "dried out" and no hazard existed. Mike Gray, BTL, WH.