NYC 9/11 Public Portal Document
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November 30, 2001
Mr. Elliot Zuckerman
Cushman l: Wakefield
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
performed on November 27, 2001 at One that
metals, airborne silica, polynuclear aromaticNorth End Avenue, The survey included Ambient Group, Inc.
sampling for airborne
hydrocarbons and airborne asbestos structures by
TEM.
Four (4) air samples were collected from
floors 7, 3, 15 and from the lobby and
electron microscopy (TEM) for asbestos analyzed by transmission
structures. The results of the analysis
asbestos levels at the time of testing were indicated that airborne
less than the analytical sensitivity of the
well below the EPA standard of 70 instrument, which is
structures/ 2 as well as other
and/or regulations. recommended industry guidelines
'four (4) air samples were collected
from floors 7, 3, 15 and from the
aromatic hydrocarbons in air. Analysis lobby and analyzed for polynuclear
of all four (4) samples collected
individual compounds were below the OSHA revealed that the levels of the
Permissible Exposure Limits and NIOSH
REL guidelines.
Four (4) air samples were collected
from floors 7, 3, 15 and from the lobby
(including silica) in air. The silica scan and analyzed for metals
revealed levels of cristobalite and quartz
REL of 0.05 mg/m'. All measured well below the NIOSH
metals revealed levels well below
NIOSI•I RELs. their respective OSIIA PELs and
Please refer to attached laboratory data
sheets for further details, Should you have any
this information, please feel free to questions regarding
call me.
Sincerely,
Signed for Ambient Group, 'inc. by:
Jo tt 1, Leitner
Vice President
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MERCAN17LL•1211338 3c ier 11_27.doc
12/04/01 TUE 18:20 [TX/RX NO 8685]
NYC-WTC 000097669
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