Here's one for ya: It seems that pigeons, a bird of very little brain, have taken to roosting on the exhaust stack for the perchloric acid hood in the plant sciences building. They sometimes roost on other stacks but they seem to prefer the perchloric hood. This is a dedicated exhaust for the hood and when the hood is washed down, well, you can guess what ends up splattered into the fume "cupboard." Do I need to worry about potentially explosive pigeon guano? Should we have users washdown the hood before use as well as after? What about exposure to pigeon diseases? I don't think there's anything I can do to discourage roosting but I'm open to those ideas, too. Thanks for your help, Debbie Debbie M. Decker, Health and Safety Specialist Environmental Health and Safety University of California, Davis 1 Shields Ave. Davis, CA 95616 (530)754-7964/(530)752-4527 (FAX) dmdecker**At_Symbol_Here**ucdavis.edu Co-Conspirator to Make the World A Better Place -- Visit www.HeroicStories.com and join the conspiracy
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