carey@uiucdcsb.cs.uiuc.edu (10/21/87)
/* Written 3:07 pm Oct 21, 1987 by carey@uiucdcsb.cs.uiuc.edu in uiucdcsb:sci.med */ /* ---------- "Ozone" ---------- */ Since there are so many printers and copiers around offices these days, and many of them produce ozone during the printing process I have a few questions about ozone in general: What are the effects of exposure to ozone? Are there any cheap ozone detectors, or measuring devices for ozone level? What methods are there for ozone filtering and/or trapping of ozone in an office environment? /* End of text from uiucdcsb:sci.med */
larry@kitty.UUCP (Larry Lippman) (10/24/87)
In article <162700004@uiucdcsb>, carey@uiucdcsb.cs.uiuc.edu writes: > Since there are so many printers and copiers around offices these days, > and many of them produce ozone during the printing process I have a > few questions about ozone in general: > > What are the effects of exposure to ozone? Respiratory distress, with irritation to lungs and respiratory passages. Effects of exposure are generally reversible. > Are there any cheap ozone detectors, or measuring devices for ozone level? Not that I am aware of. The standard method for ozone-in-air determination consist of taking a measured volumetric sample of air, passing it through a known amount of potassium iodide reagent solution, titrating with standard sodium sulfite solution, and calculating ozone concentration from titration results. While there are autoanalyzers to perform this measurement on a (somewhat) continuous basis, they are not "cheap" ($ 5K or more). > What methods are there for ozone filtering and/or trapping of ozone > in an office environment? No methods that I am aware of other than insuring an adequate amount ventilation with a suitable quantity of HVAC makeup air from the outside. While ozone concentrations can be a problem in certain industrial environments and around high-power lasers, I don't believe there is any hazard with such items as office copiers or laser printers. <> Larry Lippman @ Recognition Research Corp., Clarence, New York <> UUCP: {allegra|ames|boulder|decvax|rutgers|watmath}!sunybcs!kitty!larry <> VOICE: 716/688-1231 {hplabs|ihnp4|mtune|seismo|utzoo}!/ <> FAX: 716/741-9635 {G1,G2,G3 modes} "Have you hugged your cat today? -I
has@eagle.ukc.ac.uk (H.A.Shaw) (10/26/87)
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I don't know about the regulations on ozone, or even if that was responsible,
but I finished my thesis a few weeks ago, and my supervisor wanted me to
photocopy 4 copies. We have a photocopier with a document handler that feeds
the pages through and sorts the output, so I put my 204 page theses in, typed
"4" and go and sat by it for a few minutes until the atmosphere made me rush to
the loos where I was sick! Such is modern technology! I had even opened all
of the windows in the print room before starting. As a child I lived on the
south coast and was always told that the refreshing smell of the sea was caused
by ozone. I would assume that the photocopier produces more than pure ozone.
I do know that ozone attacks some rubber and plastics.
UUCP: ...seismo!mcvax!ukc!has | Howard A. Shaw.
or : has@ukc.uucp | Room 12, Physics Lab.,
JANET: has@uk.ac.ukc | The University,
Phone: +44 227 764000 Ext. 3282 | Canterbury, England. CT2 7NZ.
--
UUCP: ...seismo!mcvax!ukc!has | Howard A. Shaw.
or : has@ukc.uucp | Room 12, Physics Lab.,
JANET: has@uk.ac.ukc | The University,
Phone: +44 227 764000 Ext. 3282 | Canterbury, England. hist
> >nthenry@utzoo.UUCP (Henry Spencer) (10/30/87)
> ... As a child I lived on the south coast and was > always told that the refreshing smell of the sea was caused > by ozone... Not true, any more than the "refreshing" smell after a storm is due to ozone. Ozone has (according to references -- no personal experience) a sharp, unpleasant smell. It is also, as you have discovered, toxic. -- PS/2: Yesterday's hardware today. | Henry Spencer @ U of Toronto Zoology OS/2: Yesterday's software tomorrow. | {allegra,ihnp4,decvax,utai}!utzoo!henry
nebezene@ndsuvax.UUCP (Todd Michael Bezenek) (11/06/87)
In article <3428@eagle.ukc.ac.uk> has@ukc.ac.uk (H.A.Shaw) writes: > As a child I lived on the >south coast and was always told that the refreshing smell of the sea was caused >by ozone. I believe that the `refreshing smell' that is referenced here and in - relation to electric storms is caused by O ions in the air. 2 -- Todd M. Bezenek, KO0N Bitnet: nebezene@ndsuvax UUCP: uunet!ndsuvax!nebezene