NY
i.
C-WTC
0001
124905
AMBIENT GROUP, INC.
10 MORRIS AVENUE
GLEN COVE, NY 11542
PROJECT ID: 211379
CLIENT: BOSTON PROPERTIES
LOCATION: 90 CHURCH STREET, 12TH FLOOR
TECHNICIAN: PETER SCHORK
FIELD ID
LABORATORY ID
DESCRIPTION
12-A2
DB2853
LOCATION #2-BULK
NYC 9/11 Public Portal Document
DATE COLLECTED: 10/14/01
DATE RECEIVED: 10/14/01
DATE ANALYZED: 10/14/01
SAMPLE
CONSTITUENTS
CELLULOSE
FIBER GLASS
CEMENT DUST
GRAVEL ROAD DUST
CARBON PARTICLES
CHRYSOTILE.
TOTAL
"PERCENToFr ing
SAMPLE **
18.0%
30.0% 1
10.0%
30.0%
10.0%
2.0%
100.0%
Signed for Ambient Group Inc. by,
TAREK FATA
ND = None Detected, NA = Not Analyzed,There are two (2) types of dust samplesubmitted for analysis: Settied = Samples submitted on tape/bulk, Airborne=Samples submitted
in Air-O-Coll Cassettes. All results oisclosed 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, Amblent Group Inc. will retain the samples Ilsted in this report for five (5) days, after which time they may be disposed
of in accordance with applicable regulations.
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000124905Source: 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.