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3. Food and Drug Administration. Ultraviolet radiation burns from high intensity metal halide and mercury vapor lighting remain a public health concern: notice to schools and other indoor, all-purpose facilities where light bulbs are subject to damage. Silver Spring, MD: Food and Drug Administration; 2009. http://www.fda.gov/Radiation-EmittingProducts/RadiationSafety/AlertsandNotices/ucm116540.htm
4. National Electrical Manufacturers Association. Recommendations for the care and maintenance of high intensity metal halide and mercury lighting in schools. Rosslyn, VA: National Electrical Manufacturers Association; 2003. https://www.nema.org/Policy/Environmental-Stewardship/Lamps/Documents/NEMA%20Recommendations.Jan.%202003.pdf
5. New Jersey Department of Environmental Protection. Mercury vapor lamps, question and answer. Trenton, NJ: New Jersey Department of Environmental Protection. http://www.nj.gov/dep/rpp/nrs/qamvl.htm