What are the benefits of using sulfur hexafluoride as a tracer in marine water systems?
Sulfur hexafluoride Tracer compound Sulfur hexafluoride was the tracer gas used in the first roadway air dispersion model calibration; this research program was sponsored by the U.S. Environmental Protection Agency and conducted in Sunnyvale, California on U.S. Highway 101.[1] Gaseous SF6 is an ongoing commonly used tracer gas for use in short-term experiments of ventilation efficiency in buildings and indoor enclosures, and for determining infiltration rates. Two major factors recommend its use: Its concentration can be measured with satisfactory accuracy at very low concentrations, and the Earth’s atmosphere has a negligible concentration of SF6. Sulfur hexafluoride was used as a harmless test gas in an experiment at St John’s Wood tube station in London, England on 25 March 2007.[2] The gas was released throughout the station, and monitored as it drifted around. The purpose of the experiment, which had been announced earlier in March by the Secretary of State for Transport Douglas A
