Working Towards an Eco-Friendly Fireworks Display
phobos13013 writes "Here's an article just in time for 4th of July fireworks shows! The ACS's Chemical and Engineering News provides a fairly technical discussion about the hazardous chemicals in modern fireworks displays. Perchlorate is currently the oxidizer of choice in fireworks, but it is also known to be a thyroid blocker. Since perchlorates are water-soluble anions, they dissolve into groundwater quickly. A study performed last summer over a lake in Ada, Oklahoma showed that less than a day after a fireworks display, the lake's chlorate levels jumped by a factor of 1,000. It took weeks for the levels to drop back down to their baseline. On the other hand, heavy metals are used to produce the pretty colors typically associated with the best fireworks. The trend is to start using nitrogen-based oxidizing fireworks; they produce less smoke, which means a smaller amount of colorizing agents can be used in displays."
Just in time? I just finished burning all of my fireworks. Maybe in time for next year...
Nuclear engineers build weapons. Civil engineers build targets.
But if they can only set off green fireworks that'll make for a pretty boring show.
They want to get rid of fireworks completely because they scare dogs.
Specialization is for insects. -Heinlein
Polluting the environment and fireworks are the two things America does best. Why do you hate us?
http://twitter.com/OLDTELEGRAM
I'm all for being environmentally friendly and all, but green fireworks would get old after awhile.
Not Cleveland, then?
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That's why I buy only depleted uranium shot loads!
=Smidge=