By Dr JM, North East England(Blogs […]
Read MoreDigging and dreaming
I can’t leave my house once the sun goes down because all lamp posts which were previously
sodium and emitted a warm, soft orange glow are now LED and emit a harsh, cold laser-like white
light. All car head lights are now LED too and these are unfortunately also on all day and night
Why LED lighting won’t save the planet
by John Lincoln(Blogs are written by […]
Read MoreHidden Blue Hazard? LED Lighting and Retinal Damage in Rats
The Canadian government greeted 2014 with the first tier of its new energy-efficiency standards for light bulbs,1 which will effectively ban incandescent light bulbs by next year.2 But efficient lighting can have its own drawbacks. For instance, although devoid of the mercury used in compact fluorescent lamps (CFLs), some white light-emitting diodes (LEDs) emit a wavelength of light associated with adverse human health effects. In this issue of EHP, researchers study retinal changes in rats exposed to white LEDs like those sometimes used in household lighting.3
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