Light Bulbs and Mercury Part 2

1 05 2007

cfl-bulb.jpg

In my last entry I raised three questions about Compact Flourescent Light bulbs aka CFL’s

1) What about regular fluorescent tubes? They have mercury too, and sometimes in greater quantity.

2) How do you dispose of these bulbs in they have mercury in them. If you put them in regular trash are you guilty of a crime?

3) Has the hazmat materials response to mercury gotten out of hand?

An astute reader pointed out that for questions 1 and 2, there indeed is a problem. Apparently CFL’s are categorized “universal waste” and shouldn’t be thrown away in the
regular trash under a 2004 state law.

Here’s a list of things that the state doesn’t want you to throw away in your regular trash:
http://www.ciwmb.ca.gov/HHW/Info/default.htm

But there is some ahem, “good” news, and that is that you can take your CFL’s and flourescent tubes out to the hazwaste disposal site at the airport. Like many “household hazardous waste” materials (now including
batteries), Butte County takes bulbs at its recycling facility at the
airport, details here: http://www.recyclebutte.net/hhw.html

Given that disposing of CFL’s requires special handling, I think high efficiency LED bulbs are the answer, I don’t want to put my family in the position of breaking a law for accidental disposal in regular household trash





Steel and Concrete -vs- Fire

1 05 2007

580-880_steel.jpg

This Thursday, the Chico News and Review will be doing a story covering the pro and cons of the people that have been lobbying editor Evan Tuchinsky for more coverage of the alternate 9/11 theories that are being pushed around the country by conspiracy thinkers.

One of the central themes of the group 911Truth.org is that the World Trade Center was brought down with explosives, rather than the engineering failure reports which point to the fire caused by the jet fuel, shocked off fireproofing, and steel trusses that weakened and allowed for a domino effect implosion and collapse.

Of course some people think 911Truth.org is just part of the tinfoil hat crowd. But this past weekend the very same set of conditions that pitted fire against concrete and steel occurred at the gasoline tanker truck accident at the I880/580 interchange in Oakland creating an accidental laboratory to illustrate the proof that fire can indeed make steel and concrete structures fail.

For all those whom cling to the alternate fantasy belief that the World Trade Center towers could not have been brought down by burning jet fuel creating an inferno that melted steel, but rather, it was explosives planted by some conspiracy, the collapse of the I-880/580 Interchange in Oakland Sunday from a burning tanker truck should provide clear empirical proof that fire can easily take down steel and concrete structures.

Engineers estimated that the flames at the bridge reached close to 3,000 degrees Fahrenheit. Steel is known to lose half of its rigidity at 1,000 degrees F and begins to melt at 2,750 degrees F.

People may conjecture myriads of alternate theories, but the laws of physics are absolute, unless of course you wear a tinfoil hat, then anything is possible.


Melting Points for Comparison
Engineers estimate Sunday’s I-880/580 flames reached close to 3,000 degrees. Here’s a breakdown of melting temperatures (In Fahrenheit) for some materials.

Molten lava: 3,140°

Iron melts: 2,797°

Steel melts: 2,750°

Gold melts: 1,947°

Silver melts: 1,763°

Steel loses half its rigidity: 1,000°

Lead melts: 622°

Water boils: 212°

Source: “Comparisons” by the Diagram Group and San Francisco Chronicle research





Light Bulbs and Mercury

1 05 2007

cfl-bulb.jpg

How much money does it take to screw in a compact fluorescent lightbulb? About $4.28 for the bulb and labor — unless you break the bulb. Then you, like Brandy Bridges of Ellsworth, Maine, could be looking at a cost of about $2,004.28, which doesn’t include the costs of frayed nerves and risks to health.

The details of this really expensive light bulb are here from Financial Post

I like CFL’s, I’ve replaced almost every one of the conventional bulbs in my house with CFL’s

This story raises three problems:

1) What about regular fluorescent tubes? They have mercury too, and sometimes in greater quantity.

2) How do you dispose of these bulbs in they have mercury in them. If you put them in regular trash are you guilty of a crime?

3) Has the hazmat materials response to mercury gotten out of hand?

I think high efficiency LED bulbs are the answer…because as much as I like CFL’s, I don’t want to be put in the position of dealing with the mercury (even though I don’t worry about its safety, I’ve handled mercury before) I don’t want to put my family in the position of having a hazmat response or fines for accidental disposal.