[CPEO-MEF] Natural perchlorate formation

[Lenny Siegel <lsiegel@cpeo.org>]

Presentation at the American Chemical Society National Meeting
Atlanta, GA
March 29, 2006

Glenn C. Miller, Environmental Sciences and Health, University of 
Nevada, Mail Stop 199, Reno, NV 89557, Viktoriya Lepak, Department of 
Natural Resources and Environmental Science, University of Nevada, Reno, 
Mail Stop 199, Reno, NV 89557, Reya Kempley, Department of Chemistry, 
University of Nevada, Reno, NV 89557, and Jalal Awadh, University of 
Yemen, Sanaa.

Naturally occurring perchlorate has been observed in playa areas of the 
western United States, in nitrate deposits from northern Chile, and has 
also been observed at low concentrations in surface and groundwater in 
the southwestern United States, distant from industrial sources. Studies 
were conducted to determine if perchlorate could be formed when dry 
chloride salts were exposed to sunlight and laboratory ultraviolet light 
in the presence of desert soils and titanium dioxide.

...

For the entire abstract, see
http://oasys2.confex.com/acs/231nm/techprogram/P945888.HTM

In case the Greek letter "mu" doesn't come through, the units for the 
soil measurements are in micrograms per kilogram.
--


Lenny Siegel
Director, Center for Public Environmental Oversight
c/o PSC, 278-A Hope St., Mountain View, CA 94041
Voice: 650/961-8918 or 650/969-1545
Fax: 650/961-8918
<lsiegel@cpeo.org>
http://www.cpeo.org


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