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Are CFL Bulbs a Health Hazard?

CFLs emit ultra violet (UV) light

Manufacturers say there is no health risk for prolonged usage, as eight hours of exposure to CFL UV light is about the same as one minute in full sunlight. For the average person this shouldn’t be a problem, however, people with light sensitive disorders may feel differently. Some international studies revealed even small amounts of CFL UV light can aggravate symptoms in chronic actinic dermatitis (CAD), a state where the skin becomes inflamed after reacting to sun or artificial light, and solar urticaria, a rare condition in which exposure to UV light induces a case of hives on both covered and uncovered areas of the skin. For the general population, in order to evade skin and retinal damage studies in Canada and elsewhere suggest avoiding CFL exposure at distances less than 12 inches which could approach, but not exceed, acceptable limits. There is no cause for concern regarding skin cancer.

Blue Light radiation, Flicker, Hums, Electric Magnetic Fields (EMF)

These issues are associated with older florescent lights and affected people with conditions including epilepsy, lupus, and autism. According to the experts newer CFLs no longer pose a hazard.

For a list of further myths and facts about CFLs see this report by Consumer Reports.

Related:
Down and Dirty on CFLs
The CFL Controversy Continues: Who Knew?
5 Reasons You Might Buy a $50 Light Bulb
Image: kwod/stock.xchng

Read more: Conscious Consumer, Conservation, Crafts & Design, Health & Safety, Home, Household Hints, Materials & Architecture, , ,

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222 comments

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7:43PM PDT on May 10, 2011

Great article. Thank you for sharing it with others!

7:30AM PDT on Apr 9, 2011

Another mercury fact to be aware of is the ratio of natural to manmade releases of mercury to the atmosphere.

http://www.atmos-chem-phys.org/10/5951/2010/acp-10-5951-2010.pdf

To summarize, nature releases 5207Mg per year and humans release 2320Mg per year. Making a ratio of greater than 2:1 in favor of nature. This is not to say that we shouldn't endeavor to minimize mercury use and to use what we do wisely but it shows that there will always be a risk of mercury in fish and food, no matter what we do and our efforts to reduce mercury in the environment will be limited.

7:14AM PDT on Apr 9, 2011

If the United States were to use up 1 billion CFL's per year, that comes out to about 3.3 tons of mercury (3mg per bulb), across the country. In comparison, the amount of mercury used in the production of thermostats (residential and commercial) in the US in 2007 and 2004 was 3.9 and 14.6 tons of mercury respectively.

http://www.newmoa.org/prevention/mercury/imerc/factsheets/thermostats.pdf

6:00PM PDT on Apr 6, 2011

Thanks - Interesting article!

3:40PM PDT on Apr 6, 2011

i would have appreciated if the article had better info to offer us. like most times they are tid-bits of inconclusive floating info. Hoe ab mentioning that LED lights are showing to be far superior in durability and not posing a mercury threat. Like someone mentioned before, ppl tend to do the lazy thing and throw those CFL bulbs right into the landfills. Up until recently, here in the U.S. is that Lowe's made it their problem to recycle CFL bulbs (this is the only one I know of) cause the landfill didn't have a place for them (at least where I live). They always treat the symptoms and not the causes!!! I also agree they should not force us to use them and improve the LED to its maximum potential. -Peace

8:31AM PDT on Apr 6, 2011

GE is only a small manufacturer of CFL's. They couldn't possibly control this market or influence it.

Most CFL's are made in factories owned by Phillips and Chinese companies.

8:26AM PDT on Apr 6, 2011

Some people think CFL's are being promoted by GE. That is silly. Most CFL's are made in China by GE competitors.

Besides that, the reason we have CFL's, nuclear power plants in earthquake zones, and high gasoline prices is the extreme actions and pressures from the environmental movement.

They won't allow normal and gradual moves toward a greener future, they want it now, right bloody now!

7:21AM PDT on Apr 6, 2011

This was just another bone to GE in the first place. They were the ones who benefited most from this mandate, brought on as part og the global warning initiative that GE was also a big part of. Windmill turbines, solar panels, they were even anticipating making billions in the energy credit marketplace management. Cronyism is still alive and well, yes, even in the Democratic controlled congress. Imagine that!!!
We need to repeal this awful legislation, if for no other reason than the major health risk of mercury poisoning. We have more efficient incandescents, and the potential dangers of the extra energy usage is far better than the direct known danger of mercury poisoning.

5:53AM PDT on Apr 6, 2011

As what my Conservative boss calls a "tree hugger" I'm all for using less energy. But I don't like CFLs.. Selfishly it's because I like to use dimmer switches and they don't work well with CFLs.
But this article lists the main reason I don't like them. It's my experience that people on this planet don't do the right thing very often. Such as reading warning labels. If these bulbs break, the vast majority will not do what they are supposed to do. The same will be true when the bulbs go out. People will simply throw them into the trash instead of disposing of them properly and the trace amounts of Mercury will end up in a landfill and eventually into our water supply.
Acceptable amounts of Mercury sounds like the nonsense the Japanese government is saying about the radiation spewing into the ocean and the atmosphere from their stricken nuclear facilities.or what our government said about the oil from the Deep Horizons oil disaster, or the poison spewing into our air from coal fired electrical plants.
The solution to using less energy is "using less energy". Not trying to create an instant fix pill which seems to be our answer to everything

4:29PM PDT on Apr 4, 2011

But when you go to buy a package there are numerous warnings - including using them around wireless equipment, including navigation and communication equipment, etc... And many packages I have read even warn not to use them in dimmer switches, etc... So what happens when you can't use those and they no longer make the others?

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