It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
UC researchers: LED lights contain lead, arsenic
LED light bulbs are the green alternative to standard incandescent light bulbs, right?
Wrong, says a new study from UC Irvine and UC Davis that suggests those good-for-the-environment light bulbs contain lead, arsenic and a dozen other potentially toxic and hazardous substances.
“LEDs are touted as the next generation of lighting,” said Oladele Ogunseitan, the study's author and chair of UC Irvine’s Department of Population Health and Disease Prevention. “But as we try to find better products that do not deplete energy resources or contribute to global warming, we have to be vigilant about the toxicity hazards of those marketed as replacements.”
To see what LED lights contain – small Christmas-strand LED lights, in particular – Ogunseitan and his team smashed up some bulbs and tested their contents.
They found that low-intensity red lights contained up to eight times the legally allowed level of lead in California.
In general, however, the higher-intensity, brighter bulbs had more contaminants than lower-intensity ones.
“We find the low-intensity red LEDs exhibit significant cancer and noncancer potential due to the high content of arsenic and lead,” the researchers wrote in their study, published in the journal Environmental Science and Technology.
Originally posted by kon1foundas
reply to post by FortAnthem
Chickens are fed bits of arsenic.
Geoscientists Follow Arsenic From Chicken Feed To Streambeds
What happened to the chicken when she crossed the road is less important that what happens to what she eats when it is used as fertilizer.
Organic arsenic is fed to poultry to prevent bacterial infections and improve weight gain. A little bit of arsenic is taken up by the tissue and the majority of it is excreted in urine. Poultry litter -- the wood chips, feathers, droppings, and urine from under poultry houses -- is rich in nitrogen and phosphorous, so is a logical fertilizer. But what happens to that arsenic?
Virginia Tech geoscientists are determining what happens to such feed additives when they are part of the manure applied to agricultural fields. They will present their research at the Geological Society of America national meeting in Salt Lake City Oct. 16-19.
In research funded by the U.S. Department of Agriculture, Madeline Schreiber, associate professor of geosciences at Virginia Tech, carried out field and laboratory studies to discover the fate of arsenic fed to poultry. She and her graduate students found that bacteria in the litter and in shallow subsurface soil transform organic arsenic to inorganic arsenic. Organic arsenic is not highly toxic to humans, but inorganic arsenic, with its organic component removed, is toxic.
Originally posted by TheRedneck
LEDs are not prone to breaking apart. Unlike other bulbs, they have no vacuum inside because they have no area inside; they are completely solid and encased in an epoxy shell. No special precaution is required to handle them, and there is no 'bleed-through' effect to release toxins to the environment.
Similar toxins are contained in microchips and other discrete semiconductors. They don't leak either.
Originally posted by Frontkjemper
So in the end, and assuming you dispose of it properly, you're still helping the green movement by generating less waste due to you not replacing your bulbs as often.