Printech Archive
Re: Ozone Question


New Message Reply About this list Date view Thread view Subject view Author view

From: Doreen Monteleone (DMONTELEONE@vax.fta-ffta.org)
Date: Thu Mar 19 1998 - 12:23:58 CST


Jim,

I honestly don't know for sure the source of the ozone as I got this
question third hand. But, one possiblity is a corona treater used to
energize film so that water based ink can stick.

Doreen

At 11:37 AM 3/19/98 -0600, you wrote:
>Doreen:
>
>Where is the ozone coming from? I have heard about some automatic
>platemaking? (I can't quite recall) equipment generating a little ozone.
>
>The ACGIH (http://www.acgih.org) publishes Threshold Limit Values for
>workers, the 8-hour Time Weighted Averages for ozone are:
>Heavy Work 0.05 ppm
>Moderate Work 0.08 ppm
>Light Work 0.1 ppm
>Less 2 hour exposure, any workload, 0.2 ppm (proposed)
>
>These were revised in 1997, so they probably reflect the latest
>research.
>
>For screening, colorimetric ozone badges are available. Workers can
>wear these to assess exposure, and they can be read visually-- without
>lab azalysis. They cost a few dollars each.
>
>Long-term effects include lung damage, aggravating asthma, etc. Ozone
>will damage rubber-- I have heard wind- shield wipers don't last very
>long in LA-- luckily it does not rain much there!
>
>Jim Hadley
>Lincoln, Nebraska
>
>Doreen Monteleone wrote:
>>
>> I'm looking for information on the long term effect ozone can have on plant
>> personell? A printer using rubber plates has noticed that they begin to
>> dry rot
>> immediately in his plant. He's concerned about exposure to his workers.
>> Is this an indication of ozone exposure? Any good sources of information on
>> this?
>> *************************************************
>> Doreen M. Monteleone, Ph.D.
>> Director of Environmental Affairs
>> Flexographic Technical Association
>> 900 Marconi Avenue
>> Ronkonkoma, NY 11779-7212
>> Tel: (516) 737-6020 x18
>> Fax: (516) 737-6813
>> E-mail: dmonteleone@vax.fta-ffta.org
>> Home Page: www.fta-ffta.org
>> *************************************************
>
>


New Message Reply About this list Date view Thread view Subject view Author view
 
PNEAC
Disclaimer / Copyright Info
Email the PNEAC Webmaster