Presents
Location: Stanford University
This will be the 419th meeting since 1954
Dust can contain considerable amounts of metals, many of which may be toxic and can be ingested by humans through inhalation. Metal stable isotopes are increasingly being used to determine the sources of these metals, for both air quality control and forensic purposes. The isotopes are pointing to both expected and unanticipated sources of the metals. This presentation focuses on using Cr, Zn, Cd and Hg stable isotopes to determine the sources of those metals in dust collected in and around Paris.
Tom Bullen is a research hydrologist with the Water Resources Discipline of the U.S. Geological Survey in Menlo Park. His research focuses on using isotopes to understand sources and fates of metals and metalloids in hydrologic environments ranging from pristine watersheds to contaminated aquifers. Using thermal ionization mass spectrometry and multi-collector inductively coupled plasma mass spectrometry, he has recently initiated a study of sources of metals in the atmosphere and how those metals may be introduced into hydrologic systems and ecosystems.
Tom Bullen
Reservations: The preferred way to make reservations is simply to email John Spritzer at jspritzer@usgs.gov by Dec. 3, tell him you will attend, commit to pay, and bring your payment to the meeting. John always emails a confirmation; if you don’t get one, assume email crashed yet again and email him a second time. A check made to “PGS” is preferred, payable at the meeting.
If you want to pay in advance:
Everyone (including Stanford folks now) Please make dinner reservations by Dec. 3. Contact John Spritzer, at U.S. Geological Survey, 345 Middlefield Road, MS-973 Menlo Park, CA 94025, Tel.: (650) 329-4833. Send check made out to “PGS” to John.
Dinner is $35.00. Includes wine (5:30 to 6:15 PM.) and dinner (6:15-7:30 PM.).
For students from all universities and colleges, the dinner, including the social 3/4-hour, is $8.00 and is partially subsidized thanks to the School of Earth Sciences, Stanford University (Note, no-show reservations owe the full price).
Doris, whose wonderful crew prepares our meals, asked that we let you know that people who are late RSVPing and people who show up without a reservation will be welcome but that they will be eating on paper plates with plastic utensils (food supply permitting).
Dues for Academic Year 2010-2011 ($10.00) should be sent to John Spritzer, U.S. Geological Survey, 345 Middlefield Road, MS-973 _Menlo Park, CA 94025. John’s phone: (650) 329-4833.
Officers: Jon Hagstrum, President; David Bedford, Vice President; Mike Diggles, Secretary; John Spritzer, Treasurer; Elizabeth Miller, PGS Stanford University Coordinator
Date created: November 24, 2010
Last modified: November 24, 2010
Created by: Mike Diggles, Webmaster-Secretary, PGS.