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News briefing schedule for the American Chemical Society 220th National Meeting

Following is a schedule of briefings for news media attending the 220th national meeting of the American Chemical Society, August 20-24, in Washington, D.C. All briefings will be held in Room 8 of the Washington Convention Center, 900 9th St., N.W. All times are Eastern Standard. A special webcast will be held at 9:30 a.m. Wednesday, August 23 on chemistry's role in preserving museum treasures from spacesuits to the paintings of the Old Masters. For further information contact Charmayne Marsh at 202-872-4445 or 202-371-5054 as of August 19.

SUNDAY, AUGUST 20

10:30 a.m.
Rising Ammonia Emissions Attributed To Cars, Not Livestock Cars may be a major source of haze-inducing ammonia, rather than livestock.
Marc Baum, Oak Crest Institute of Science, Baldwin Park, Calif. Michael Hoffman, Georgia Institute of Technology, Atlanta, Ga.

NOON
FIRST HUMAN STUDIES PROMISING FOR POPULAR NUTRITIONAL SUPPLEMENT
Conjugated linoleic acid (CLA), a popular dietary supplement, could help control weight, fat, diabetes and muscle loss. A report on human studies.

**NOTE: All material at this briefing is embargoed until 1:30 p.m. Eastern Time, Sunday, Aug. 20.

• Michael Pariza, Food Research Institute, University of Wisconsin-Madison
• Ola Gudmundsen, Scandinavian Clinical Research, Kjeller, Norway
• David Kritchevsky, Wistar Institute, Philadelphia, Pa.

MONDAY, AUGUST 21

10:30 a.m.
PRESS AVAILABILITY: Aleksandr Nikitin Environmental activist Aleksandr Nikitin, a former Russian Navy officer who was imprisoned for exposing unsafe disposal of nuclear waste, will discuss radioactive contamination in his native land.

**NOTE: Nikitin speaks at 9 p.m., Monday, Aug. 21, in Room 33 of the Washington Convention Center. 8/16/00

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WEDNESDAY, AUGUST 23

9:30 a.m.
Chemistry's Role in preserving America's Museum Treasures Smithsonian and other research experts discuss preservation methods for museum treasures ranging from spacesuits to the paintings of the Old Masters.

**NOTE: Webcast accessible at http://www.acs.org/meetings/washington2000/webcast.html

• Lisa A. Young, Smithsonian Institution's National Air and Space Museum
  
• Mary T. Baker, Chemonics International, Washington, D.C.
  
• Yvonne Shashoua, National Museum of Denmark, Lyngby, Denmark
  
• Charles Tumosa, Smithsonian Center for Materials Research and Education
  
• David W. Von Endt, Smithsonian Center for Materials Research and Education

NOON
State of the Chesapeake Bay
A report on the overall state of the Chesapeake Bay, including an update on the effects of pesticides, agricultural runoff and animal by-products.

• Gian Gupta, University of Maryland Eastern Shore, Princess Anne, Md.
  
• Anthony S. Pait, National Oceanic and Atmospheric Administration
  
• Andrea M. Dietrich, Virginia Tech, Blacksburg, Va.
  
• Wayne Robarge, North Carolina State University, Raleigh, N.C.
  
• Laura McConnell, USDA, Agricultural Research Service, Beltsville, Md.
  
• Cathleen Hapeman, USDA, Agricultural Research Service, Beltsville, Md.

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