styrofoam
Wednesday, October 14th, 2009After a free labor day meal, the polystyrene containers that filled the garbage cans were painful to see. Their usefulness lasted for 1/2 hour and their time in the landfill (polystyrene isn’t recycled) will last for hundreds and perhaps thousands of years.
Did you know styrofoam AKA polystyrene, AKA plastic #6 is manufactured using benzene, from coal; styrene, from petroleum; and ethylene, a “blowing agent”. The main manufacturing route to styrene is the direct catalytic dehydrogenation of ethylbenzene: If you understand that and want more detail go to…
http://www.epa.gov/ttn/atw/hlthef/styrene.html
Long-term exposure to styrene in humans results in effects on the central nervous system (CNS), such as headache, fatigue, weakness, and depression, CNS dysfunction, hearing loss, and peripheral neuropathy. This only happens after long term exposure, so if you live long enough you’ll be a deaf, unbalanced, dummyhead with tremors and restless leg syndrome. Know anyone like that?
You might think to yourself… “Somethings gotta kill me, I’m not gonna worry about monomers of styrene”. Try thinking of this. It takes 500 years for the chemical components of polystyrene to dissolve and it’s foreverness accounts for 25% of landfill waste.
While polystyrene is recyclable, most recycling programs don’t. Burning polystyrene releases all the stuff it is made of into the air; including dioxin, and carbon monoxide. Dioxins are highly toxic and can cause reproductive and developmental problems, damage the immune system, interfere with hormones and also cause cancer. Prevention or reduction of human exposure is best done via source-directed measures, i.e. strict control of industrial processes to reduce formation of dioxins as much as possible. That is from WHO, as in the World Health Organization. http://www.who.int/mediacentre/factsheets/fs225/en/
There are some positive things we can do with the Styrofoam/polystyrene that already exists. If you mix it with cement and make building blocks out of it, the result is strong enough to withstand earthquakes. If the building burns we’re screwed so make sure there is a good sprinkler system installed.
A concern was espressed that if California does away with all polystyrene containers for food use — jobs will be lost. Those plants that are currently making polystyrene containers for food consumption are in China. Hong Kong has a study of the impacts of polystyrene. http://www.way-to-go.org/doc/PolystyreneFactSheets.pdf
The legislature (Of Hawaii) finds that it is in the interest of protecting the public health and safety to prohibit the use of polystyrene food containers by restaurants and take-out food operations. http://www.capitol.hawaii.gov/session2008/Bills/SB2629_.htm
The market is bursting with alternatives including polylactic acid (PLA), which is generated using corn instead of petroleum. Many of these substitutes can be commercially composted after use.
Another great product I read about is Angela Morris’ Woolcool… http://business.timesonline.co.uk/tol/business/industry_sectors/natural_resources/article5949979.ece
—————————————————————————————————————————————————-
A very smart lady named Margarita Calafell is using enzymes to make a super product to replace polystyrene. Hope she can make it waterproof so we can use if for take out. http://www.engineersedge.com/technology_news/posts/794.html
Hopefully polystyrene will go away as will asbestos.











