Lighting Research Center Lighting Research Center
Light Pollution
Title:  Light Pollution
Date:  2003
Revised:  February 2007
Author(s):  Michele McColgan
Number of Pages:  23
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Abstract

Outdoor lighting has become a necessary integral part of society. Light pollution is a by-product of outdoor lighting. Light pollution can be reduced by lighting only what is actually needed, when it is needed, and to the appropriate level. This publication discusses the three elements of light pollution, which are sky glow, light trespass, and glare, and gives examples and recommendations for minimizing or eliminating the undesirable effects of each element when designing and using outdoor lighting.



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