UV lights and effectiveness

[JH]

Thank you all for your responses!  I will pass them on.

Best - 

John Himmelman
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John Himmelman
Killingworth, CT USA
jhimmel at connix.com
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Visit my websites at:
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www.ctamphibians.com
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-----Original Message-----
From: Michael Gochfeld <gochfeld at EOHSI.RUTGERS.EDU>
To: leps-l at lists.yale.edu <leps-l at lists.yale.edu>
Date: Thursday, June 28, 2001 9:32 AM
Subject: Re: UV lights and effectiveness


>I don't know about moth attractiveness, but fluorescents do age 
>gradually.  Some of the mercury vapor deposits on the glass which could 
>change both the characteristics of the light and the transmissibility of 
>the glass. We had to look at this issue on the Mercury Task Force 
>(concerned with disposal of spent fluorescents).  So it's at least 
>plausible that attractiveness might change over time. But many 
>fluorescents operate for thousands of hours, so the aging might not be 
>apparent to most moth-ers. 
>
>M. Gochfeld
>
> 
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