NYC 9/11 Public Portal Document
- BEC-13-01 THU 06:56 PM AMBIENT GROUP INC FAX NO. 212 768 1540 P. 02
ambient group Inc. NAIIONAI III AL QUARTCRy
Indoor envlronmantal quality survey
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December 13, 2001
Mr. Elliot Zuckerman
Cushman &~VVakcfleld
a/a/f Mercantile Exchange
One North End Avenue
New 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 5, 2001 at One Ambient Group, Inc.
North End Avenue. The survey included
metals (including silica scan), polynuclear sampling for airborne
aromatic hydrocarbons and airborne
TEM. asbestos structures by
Four (4) air samples were collected
from floors 3, 7, 10 and 15 and
microscopy ('rEM) for asbestos structures. analyzed by transmission electron
The results of the analysis
levels at the time of testing were less than indicated that airborne asbestos
the analytical sensitivity of the
the EPA standard of 70 structures/mm2 instrument, which is well below
as well as other recommended
regulations. industry guidelines and/or
Four (4) air samples were collected from
floors 3, 7, 10 and lS and analyzed for
silica). All measured metals metals in air (including
revealed levels well below their respective
Levels of cristobalite and quartz detected OSHA PELs and NIOSH RELs.
in the silica scan were also
0.05 mg/m'. below the NIOSII REL of
Four (4) air samples were collected from
floors 3, 7, 10 and 15 and analyzed for
hydrocarbons in air. Analysis of all four (4) poiynuelear aromatic
samples collected revealed that the levels
compounds wore below the OSHA Permissible of the individual
Exposure Limits and NIOSil REL guidelines.
Please refer to the attached laboratory
data sheets for further details. Should you
regarding this information, please feel free to have any questions
call me.
Sincerely,
Signed for A bient Group, Inc. by:
nt
to1X11 ] . Le,~tner t/ ►Lr/~tNi 1
1(3/or
Vice President
Junl
Attachncnt
GUN COVE, NY AIIAAR, FL
CHICAGO, L.
qrs 6oq-oogq ;op Sø-mor
C.OUONA, CA
211335 312 Y27.55•l(.
909 272
. -47j0
12/13/01 THU 19:00 [TX/RX NO 8798]
NYC-WTC 000097632
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