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Photos related to our work at the World Trade Center.

Image of the World Trade Center area at
night, Sept 16 Image of the World Trade Center area at night, Sept 16, 2001 imaged by USGS field team Gregg Swayze and Todd Hoefen. (586 KBytes)


Image of Todd Hoefen making a spectral
measurement of World Trade Center sampls WTC01-14 Image of Todd Hoefen making a spectral measurement of World Trade Center sampls WTC01-14. The sample is in a fumehood. (278 KBytes)


Closeup of sample WTC01-14 being measured with
a spectrometer Closeup of sample WTC01-14 being measured with a spectrometer. The black cord with the steel tip is the fiber-optic probe of the spectrometer. (166 KBytes)


Complete USGS Open File Report: "Environmental Studies of the World Trade Center area after the September 11, 2001 attack" by R. N. Clark et al. 2001. This WTC report is now being served from the greenwood server. Click here to go to the full repoort.


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This page URL= http://speclab.cr.usgs.gov/wtc/photos
This page is maintained by: Dr. Roger N. Clark rclark@speclab.cr.usgs.gov
Last modified Sept. 6, 2002.