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Fluorescent bulbs contain mercury, a toxic substance. The United States Environmental Protection Agency (EPA) provides safety guidelines for how to clean up a broken fluorescent bulb. [17] Mercury can be harmful to children and developing fetuses, so children and pregnant women should avoid being in the area whilst a broken bulb is cleaned up. [18]
Color corrected" mercury bulbs overcome this problem with a phosphor on the inside of the outer bulb that emits at the red wavelengths, offering whiter light and better color rendition. Mercury-vapor lights operate at an internal pressure of around one atmosphere and require special fixtures, as well as an electrical ballast. They also require ...
Mercury thermometers and mercury light bulbs are not as common as they used to be, and the amount of mercury they contain is unlikely to be a health concern if handled carefully. However, broken items still require careful cleanup, as mercury can be hard to collect and it is easy to accidentally create a much larger exposure problem. [ 65 ]
The main downside of CFL bulbs is the mercury, about 4 milligrams in each bulb. And while no mercury is released when the bulbs are just sitting there, or when they are in use, it can become a ...
Objections more specifically relating to compact fluorescent light bulbs include the different quality of light produced by phosphor-based lamps compared to incandescent lamps [14] and that compact fluorescent light bulbs contain small amounts of mercury, a potent neurotoxin, which is especially dangerous to children and pregnant women, and ...
1. Light bulbs contain mercury are dumped in landfills in large quantities every year. So, according to Canada's national strategy for bulbs containing mercury, all mercury-containing lamps need to be collected and sent to special facilities which further process it and ensures environment friendly disposal of those bulbs.
(UN No. no longer in use) Waste Mercury contained in manufactured articles (UN No. no longer in use) [1] UN 2809: 8: Mercury or Mercury contained in manufactured articles UN 2810: 6.1: Toxic liquids, organic, n.o.s. or Toxic, liquids, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B UN 2811: 6.1: Toxic solid, organic, n.o.s. UN ...
These two changes combine to allow the 253.7 nm ultraviolet light produced by the mercury arc to pass out of the lamp unmodified (whereas, in common fluorescent lamps, it causes the phosphor to fluoresce, producing visible light). Germicidal lamps still produce a small amount of visible light due to other mercury radiation bands.
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