Global emissions of perfluorocyclobutane (PFC-318, &amp;lt;i&amp;gt;c&amp;lt;/i&amp;gt;-C&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;F&amp;lt;sub&amp;gt;8&amp;lt;/sub&amp;gt;) resulting from the use of hydrochlorofluorocarbon-22 (HCFC-22) feedstock to produce polytetrafluoroethylene (PTFE) and related fluorochemicals
Atmospheric chemistry and physics