ABSTRACT
Laser technology is continuously advancing and in some settings, such as universities and research institutions, lasers become outdated or applications change such that particular lasers are no longer needed. Typically, these lasers go to storage, but space is very valuable and a time comes when these laser systems go to salvage. The question arises; can they just be thrown out in routine trash? If one is unaware of the individual components of lasers, the answer seems a simple yes; while, in fact, a number of laser components require careful consideration when it comes to disposal. Hazards and components vary by laser. As an example, the majority of lasers manufactured before July 1, 2006 that use electricity as their source of energy contain lead. In this case, if disposed of improperly, lead may seep into the environment. However, high power gas laser plasma tubes may contain carcinogens. This chapter aims at giving the reader some suggestions and options. The topic has been partially addressed in Z136.1 and Z136.8, in a number of presentations on the Laser Safety Officer (LSO) Workshop series and a laser disposal guide developed by the laser safety program at Lawrence Berkeley National Laboratory (while I was LSO there).
