Topic > Teflon Toxicity - 1574

The “miracles of science” have given rise to an era of super materials that are unaffected by extreme conditions and provide us with many overlooked benefits that are part of our daily lives. Clothing that resists fire and moisture, the gases used to power car air conditioners, the plastic that perfectly releases the fried egg from the pan. These discoveries made by DuPont can likely produce some of the most significant man-made products of the 21st century. One among many products, polytetrafluoroethylene (PTFE, also known as Teflon) is a synthetic fluoropolymer that can be used in a wide range of products. Its extremely low coefficient of friction and very hydrophobic and lipophobic characteristics are highly desired in its uses in nonstick cookware coatings and food packaging such as microwave popcorn bags. This characteristic is the cause of the aggregate effect of carbon-fluorine bonds. Since almost every household uses a nonstick pan daily, the safety of such a product should have been researched and presented when it was first developed in the 1940s. It took nearly 50 years for any real concerns about the pyrolysis of PTFE to emerge to the public. Even now the effects of the exhaust gases emitted by PTFE are still largely a mystery. Although many studies reveal that several gases are emitted, such as perfluorooctanoic acid (PFOA) and perfluoroisobutene (PFIB), the effects of these gases from a toxicological point of view are still a mystery to the public and not regulated by the EPA. ) and Perfluoroisobutene (PFIB), belong to the family of perfluorinated compounds (PFC) which refers to a class of organofluorine compounds in which all hydrogens are replaced with fl...... middle of paper ......tam . 2005, 22, 1023- 1031.Waritz, RS, An industrial approach to pyrolysis and combustion risk assessment. Environmental Health Perspectives Vol. 11, page. 197 – 202, 1975 United States Environmental Protection Agency. Interim health warnings for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS). January 8, 2009. Stewart CE Handbook of Mass Casualty Weapons and Response to Terrorism. P.42-43. 2006.EPA.gov. 2010/2015 PFOA Stewardship Program http://www.epa.gov/oppt/pfoa/pubs/stewardship/index.htmlSinclair E, Kim SK, Akinleye HB, Kannan K. Quantification of gas-phase perfluoroalkyl surfactants and released fluorotelomeric alcohols from non-stick pans and microwave popcorn bags. Technology Ski Environment. 2007;41:1180–1185. Clayton JW. Toxicology of fluoroalkenes: review and research needs. Environmental health perspective. 1977;21:255–267.