HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
William K.
User Rank
Platinum
Microgram madness, or monstrous metallic mercury
William K.   5/3/2013 11:53:48 PM
NO RATINGS
So, what is the concentration of mercury vapor in ten cubic feet of air near where a single CFL device has been broken ? and where in the lamps does this 3 micrograms reside in the lamp, and why would it be in a vapor form at normal room temperatures? My observation of the broken lamps that I have seen is that there are quite large chunks and a few small slivers. I know that the slivers can be nasty and sharp, but clearly most of the white stuff is still in the glass. So where does all of this huge cloud of mercury vapor come from?

OF course it is best to avoid breaking the lamps, but this writeup seems to be intent on arousing hysteria and fomenting panic. If we went back to using candels for light the big hazard would be setting fires, which are probably a lot more dangerous.

I am not advocating stupidity, and I would never allow children to play with broken lights, but the whole tone of the article seems inappropriate for an intellectual publication such as Design News.

Cabe Atwell
User Rank
Blogger
Re: Mercury replacement
Cabe Atwell   5/3/2013 3:24:16 PM
NO RATINGS
I'm with TJ on this, time to go LED. There are plenty of LED solutions much brighter than FL and CFL is the same size category.

However, I wish I had this tech when I watched one of my ceiling CFLs spark and expel fumes for a few minutes.

C

AnandY
User Rank
Gold
Mercury replacement
AnandY   5/3/2013 7:41:14 AM
NO RATINGS
It is considered a persistent bioaccumulative toxic chemical as it does not degrade in the environment.

Todd, thanks for this informative post. Till now I thought glass pieces of broken bulb are dangerous, but mercury inside it is so dangerous. Can this mercury be replaced by any other material?

TJ McDermott
User Rank
Blogger
Why is it still there?
TJ McDermott   5/2/2013 11:05:56 PM
NO RATINGS
I must have been exposed to too much mercury because I cannot understand why these HAZMAT hand grenades have been mandated into our houses and workplaces.

Lead was legislated out of paint long ago.  So were volatile organic compounds (VOCs) which made paint spread much better.

This article addresses the handling after the fact.  Why not instead legislate a bulb that isn't a HAZMAT Hand Grenade?  Skip this crap and instead force us to LED bulbs?

 

Rob Spiegel
User Rank
Blogger
The cost of absorbing mercury
Rob Spiegel   5/2/2013 12:33:50 PM
NO RATINGS
Interesting story, Todd. I would guess the packing that absorbs mercury costs quite a bit more than traditional packaging. I wonder whether this will affect its use. Unless there is a government mandate, it could be this packaging will not be widely utilized.



Partner Zone
Latest Analysis
This Gadget Freak review looks at a cooler that is essentially a party on wheels with a built-in blender, Bluetooth speaker, and USB charger. We also look at a sustainable, rotating wireless smartphone charger.
Texas Instruments is rolling out a new microcontroller that could make the design of sensor networks and data logging systems simpler and less costly.
Made By Monkeys highlights products that somehow slipped by the QC cops.
From pitchers and forwards to quarterbacks and defensemen, we offer a peek at some of the more memorable engineers in sports history.
IBM announced it is dedicating $3 billion of funding over the next five years to research and development of new processor technologies.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jul 21 - 25, Design Products With Bluetooth Low Energy
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service