Restored archive. The original History Commons is no longer online; this is a read-only edition of its timelines. Content is licensed CC BY-NC-SA.

History Commons Archive

Restored archive of the open-content investigative journalism project

Gregg Swayze

Profile: Gregg Swayze

Events (3)

(9:59 a.m.-11:00 a.m.) September 11, 2001: US Geological Survey Scientists Watch WTC Collapses on TV, Realize Dust Is Harmful 2001-09-11
September 17, 2001-September 19, 2001-: US Geological Survey Collects Dust Samples near Ground Zero 2001-09-17
September 20, 2001: US Geological Survey Finds Asbestos, ‘Alphabet Soup of Heavy Metals’ in Ground Zero Dust 2001-09-20