Brookhaven Lecture

"475th Brookhaven Lecture: 'A Really Good Hammer: Quantification of Mass Transfer Using Perfluorocarbon Tracers'"

Presented by Tom Watson, Environmental Sciences Department

Wednesday, February 15, 2012, 4:00 pm — Berkner Hall Auditorium

In his lecture, Tom Watson will explain why perfluorocarbon tracers (PFTs) are unique tools. Their extremely low background level ��" detectable at one part per quadrillion ��" allows their transport to be easily tracked. He will describe how Lab researchers used PFTs during the 2005 Urban Dispersion Program field studies in New York City, gathering data to help improve models of how a gas or chemical release might move around Manhattan's tall buildings and canyons. Closer to home, scientists used PFTs to make ventilation measurements in Bldg. 400 on the Lab site to provide data to test air flow models used in determining the effects of passive and active air exchange on the levels of indoor and outdoor air pollution. Watson will explore the future of tracers as a tool and present the plans for future research.

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