From: damarkley@gmail.com   
      
   On Thursday, October 8, 2020 at 2:26:29 PM UTC-4, dlzc wrote:   
   > Dear Dean:    
   >    
   > On Thursday, October 8, 2020 at 10:43:07 AM UTC-7, Dean wrote:    
   > ...   
   > > That's fairly high ozone levels.   
   > For a home. But workplaces occasionally get as high as 0.1 ppm.   
   > > You would think folks would find that annoying.    
   > > Ozone is not a pleasant odor.   
   > Ozone-in-air is nasty (makes a little NOx too). Ozone-in-oxygen is a little   
   "sweeter". And either can trigger an asthma attack, headaches, and anemia.    
   >    
   > I took a shot of 12wt% ozone into my nose once, the shock made me whiff it   
   in. Was wiped out for hours. Low gas flow, never sure if it is making ozone or   
   not...    
   >    
   > David A. Smith   
      
   Hi David,    
      
   I am well acquainted with ozone in my workplace.  We use UV lamps to cure   
   coatings and inks.  The lamps are very good at generating ozone as a   
   byproduct.  Every now and then, the exhaust ducting would fail and operators   
   would begin to complain about    
   headaches, eye irritation and itchiness.  One trip to the affected area tells   
   me immediately what the problem is.  We've measured levels from 0.08 (max   
   recommended over 8 hours) to 1.5 ppm (nasty).  Shutting down the lamps and   
   getting maintenance to fix    
   the exhaust is an easy solution.   
      
   Dean   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)