NYC 9/11 Public Portal Document
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December 7, 2001
Mr. Elliot Zuckerman
Cushman & Wakefield
a/a/f Mercantile Exchange
One North End Avenue
Ncw York, New York 10282
Re; One North End Avenue
Ambient Project # 211338
Dear Mr. Zuckerman:
The following is a summary of the
indoor environmental quality survey that
performed on December 4, 2001 at One North Ambient Group, Inc.
End Avenue. 1-he survey included
metals (including silica scan), polynuclear sampling for airborne
aromatic hydrocarbons and airborne asbestos
T13M. structures by
Four (4) air samples were collected from fl
oors 3. 7, 10 and 12 and analyzed by
microscopy (TGM) for asbestos structures. transmission electron
The results of the analysis indicated that
levels at the time of testing were less than airborne asbestos
the analytical sensitivity of the instrument,
the EPA standard of 70 structures/mm2 which is well below
as well as other recommended industry
regulations. guidelines and/or
Four (4) air samples were collected from floors
3, 7, 10 and 12 and analyzed for metals in
silica). All mcasurod metals revealed air (including
levels well below their respective OSHA PELs
Levels of cristobalite and quartz detected and NIDS14 Rl3Ls.
in the silica scan were also below the
0.05 mg/n13. NIOSH REL of
Four (4) air samples were collected from floors
3, 7, 10 and 12 and analyzed for
hydrocarbons in air. Analysis of all four (4) polynuclear aromatic
samples collected revealed that the Ievels of
compounds were below the OSHA Permissible the individual
Exposure Limits and NIOSI{ REL guidelines,
Please refer to the attached laboratory data
sheets for further details. Should you have any
regarding this information, please feel free to call questions
me.
Sincerely,
Signed for A ient Group, Inc. by:
V '
John J. Leitner /G
Vice President jJ ! ti 1J 7
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Attachments
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12/07/01 FRI 18:26 [TX/RI NO 8736]
NYC-WTC 000097647
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