Abstract
PTFE is used as an inner coating material in non-stick cookware. This unique polymer coating prevents food from sticking in the pans during the cooking process. Such cookware is also easy to wash. At normal cooking temperatures, PTFE-coated cookware releases various gases and chemicals that present mild to severe toxicity. Only few studies describe the toxicity of PTFE but without solid conclusions. The toxicity and fate of ingested PTFE coatings are also not understood. Moreover, the emerging, persistent, and well-known toxic environmental pollutant PFOA is also used in the synthesis of PTFA. There are some reports where PFOA was detected in the gas phase released from the cooking utensils under normal cooking temperatures. Due to toxicity concerns, PFOA has been replaced with other chemicals such as GenX, but these new alternatives are also suspected to have similar toxicity. Therefore, more extensive and systematic research efforts are required to respond the prevailing dogma about human exposure and toxic effects to PTFE, PFOA, and GenX and other alternatives.
References
Arito H, Soda R (1977) Pyrolysis products of polytetrafluoroethylene and polyfluoroethylenepropylene with reference to inhalation toxicity. Ann Occup Hyg 20:247–255. https://doi.org/10.1093/ANNHYG/20.3.247
Baker BB, Kasprzak DJ (1993) Thermal degradation of commercial fluoropolymers in air. Polym Degrad Stab 42:181–188. https://doi.org/10.1016/0141-3910(93)90111-U
Beekman M, Zweers P, Muller A, et al (2016) Evaluation of substances used in the GenX technology by Chemours, Dordrecht - RIVM http://www.rivm.nl/Documenten_en_publicaties/Wetenschappelijk/Rapporten/2016/december/Evaluation_of_substances_used_in_the_GenX_technology_by_Chemours_Dordrecht. Accessed 17 Jul 2017
Boucher M, Ehmler TJ, Bermudez AJ (2000) Polytetrafluoroethylene gas intoxication in broiler chickens. Avian Dis 44:449–453
Brubaker RE (1977) Pulmonary problems associated with the use of polytetrafluoroethylene. J Occup Med 19:693–695
Conesa JA, Font R (2001) Polytetrafluoroethylene decomposition in air and nitrogen. Polym Eng Sci 41:2137–2147. https://doi.org/10.1002/pen.10908
Ellis DA, Mabury SA, Martin JW, Muir DCG (2001) Thermolysis of fluoropolymers as a potential source of halogenated organic acids in the environment. Nature 412:321–324. https://doi.org/10.1038/35085548
Evanas E (1973) Pulmonary edema after inhalation of fumes from polytetrafluoroethylene (PTFE). J Occup Med 15:599–601
Ewan S, Seung KK, Henry BA, Kurunthachalam K (2007) Quantitation of gas-phase perfluoroalkyl surfactants and fluorotelomer alcohols released from nonstick cookware and microwave popcorn bags. Environ Sci Technol 41:1180–1185. https://doi.org/10.1021/ES062377W
Johnston CJ, Finkelstein JN, Mercer P et al (2000) Pulmonary effects induced by ultrafine PTFE particles. Toxicol Appl Pharmacol 168:208–215. https://doi.org/10.1006/taap.2000.9037
Kato K, Wong L-Y, Jia LT et al (2011) Trends in exposure to polyfluoroalkyl chemicals in the US population: 1999−2008. Environ Sci Technol 45:8037–8045. https://doi.org/10.1021/es1043613
Lee CH, Guo YL, Tsai PJ et al (1997) Fatal acute pulmonary oedema after inhalation of fumes from polytetrafluoroethylene (PTFE). Eur Respir J 10:1408–1411
Newton S, McMahen R, Stoeckel JA et al (2017) Novel polyfluorinated compounds identified using high resolution mass spectrometry downstream of manufacturing facilities near Decatur, Alabama. Environ Sci Technol 51:1544–1552. https://doi.org/10.1021/acs.est.6b05330
Post GB, Cohn PD, Cooper KR (2012) Perfluorooctanoic acid (PFOA), an emerging drinking water contaminant: a critical review of recent literature. Environ Res 116:93–117. https://doi.org/10.1016/j.envres.2012.03.007
Powley CR, Michalczyk MJ, Kaiser MA et al (2005) Determination of perfluorooctanoic acid (PFOA) extractable from the surface of commercial cookware under simulated cooking conditions by LC/MS/MS. Analyst 130:1299. https://doi.org/10.1039/b505377c
Sajid M, Ilyas M, Basheer C et al (2015) Impact of nanoparticles on human and environment: review of toxicity factors, exposures, control strategies, and future prospects. Environ Sci Pollut Res 22:4122–4143. https://doi.org/10.1007/s11356-014-3994-1
Scheel LD, Lane WC, Coleman WE (1968) The toxicity of polytetrafluoroethylene pyrolysis products—including carbonyl fluoride and a reaction product, silicon tetrafluoride. Am Ind Hyg Assoc J 29:41–48. https://doi.org/10.1080/00028896809342979
Schlummer M, Sölch C, Meisel T et al (2015) Emission of perfluoroalkyl carboxylic acids (PFCA) from heated surfaces made of polytetrafluoroethylene (PTFE) applied in food contact materials and consumer products. Chemosphere 129:46–53. https://doi.org/10.1016/j.chemosphere.2014.11.036
Seidel WC, Scherer KV, Cline D et al (1991) Chemical, physical, and toxicological characterization of fumes produced by heating tetrafluoroethene homopolymer and its copolymers with hexafluoropropene and perfluoro(propyl vinyl ether). Chem Res Toxicol 4:229–236
Shuster KA, Brock KL, Dysko RC et al (2012) Polytetrafluoroethylene toxicosis in recently hatched chickens (Gallus domesticus). Comp Med 62:49–52
Skocaj M, Filipic M, Petkovic J, Novak S (2011) Titanium dioxide in our everyday life; is it safe? Radiol Oncol 45:227–247. https://doi.org/10.2478/v10019-011-0037-0
Sun M, Arevalo E, Strynar M et al (2016) Legacy and emerging perfluoroalkyl substances are important drinking water contaminants in the cape fear river watershed of North Carolina. Environ Sci Technol Lett 3:415–419. https://doi.org/10.1021/acs.estlett.6b00398
Tsai PJ, Guo YL, Chen JL, Shieh HY (2000) An integrated approach to initiate preventive strategies for workers exposed to Teflon pyrolytic gases in a plastic industry. J Occup Health 42:297–303. https://doi.org/10.1539/joh.42.297
Umair M, Javed I, Rehman M et al (2016) Nanotoxicity of inert materials: the case of gold, silver and iron. J Pharm Pharm Sci 19:161–180
Wang P, Lu Y, Wang T et al (2016) Shifts in production of perfluoroalkyl acids affect emissions and concentrations in the environment of the Xiaoqing River Basin, China. J Hazard Mater 307:55–63. https://doi.org/10.1016/j.jhazmat.2015.12.059
Wang Z, Cousins IT, Scheringer M, Hungerbühler K (2013) Fluorinated alternatives to long-chain perfluoroalkyl carboxylic acids (PFCAs), perfluoroalkane sulfonic acids (PFSAs) and their potential precursors. Environ Int 60:242–248. https://doi.org/10.1016/j.envint.2013.08.021
Waritz RS (1975) An industrial approach to evaluation of pyrolysis and combustion hazards. Environ Health Perspect 11:197–202
Waritz RS, Kwon BK (1968) The inhalation toxicity of pyrolysis products of polytetrafluoroethylene heated below 500 degrees centigrade. Am Ind Hyg Assoc J 29:19–26. https://doi.org/10.1080/00028896809342976
Webpage https://donate.ewg.org/images/ewg_teflontempinfo_c02.pdf
White SS, Fenton SE, Hines EP (2011) Endocrine disrupting properties of perfluorooctanoic acid. J Steroid Biochem Mol Biol 127:16–26. https://doi.org/10.1016/j.jsbmb.2011.03.011
Woskie SR, Gore R, Steenland K (2012) Retrospective exposure assessment of perfluorooctanoic acid serum concentrations at a fluoropolymer manufacturing plant. Ann Occup Hyg 56:1025–1037. https://doi.org/10.1093/annhyg/mes023
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The authors would like to acknowledge the support of the Center for Environment and Water, Research Institute, at King Fahd University of Petroleum and Minerals.
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Sajid, M., Ilyas, M. PTFE-coated non-stick cookware and toxicity concerns: a perspective. Environ Sci Pollut Res 24, 23436–23440 (2017). https://doi.org/10.1007/s11356-017-0095-y
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DOI: https://doi.org/10.1007/s11356-017-0095-y