NYC-WTC
: 000124955
AMBIENT GROUP, INC.
10 MORRISAVENUE
GLEN COVE, NY 11542
DUST CHARACTERIZATION LABORATORY DATA REPORT
PROJECT ID: 211379
CLIENT: BOSTON PROPERTIES
LOCATION: 90 CHURCH STREET, 6TH FLOOR
TECHNICIAN: PETER SCHORK
FIELD ID
LABORATORY ID
6-A5
DB2827
DESCRIPTION
LOCATION #5-BULK
DATE COLLECTED: 10/14/01
DATE RECEIVED: 10/14/01
DATE ANALYZED: 10/14/01
SAMPLE
CONSTITUENTS
CELLULOSE
FIBER GLASS
GRAVEL ROAD DUST
CARBON PARTICLES
DECAYED ORGANIC MATTER_
.TOTAL
NYC 9/11 Public Portal Document
PERCENT OF
..SAMPLE.**..
10.0%
30.0%
15.0%
100.0%
Signed for Ambient Group Inc. by,
TAREK FATA
ND = None Detected, NA = Not Analyzed, There are two (Z) types of dust sample submitted for analysis: Settied = Samples submitted on tape/bulk, Airborne = Samples submitted
in Air-O-Cell Cassettes. All results disclosed in this report relate only to the items tested. No reproduction of all or any portion of this report shall occur without written approval
of Ambient Group Inc. Unless otherwise directed by the Client, Ambient Group Inc. will retain the samples listed in this report for five (5) days, after which time they may be disposed
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000124955Source: NYC Law Department, mirrored locally
Laboratory report documenting transmission electron microscopy analysis of an air sample collected from NYC Board of Education facilities on February 8, 2002.