NYC 9/11 Public Portal Document
Oct-05-2901 11 :06 From-CLAYTONGGROUPQ + T-624 P.021/021 F-261
A
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4Claytori
Analytical Results of Area Air Sampling for Airborne Fibers (continued)
at
14 Wall Street
New York, New York'
for
Stellar Management
Clayton Project No. 40.02128.00
Sampling Air Airborne Fiber
Sample Period Volume Concentration
Number Sampling Location Start Stop (liters) (f/cc)
SEPTEMBER 21.2001
SM092101-34 1" Floor. lobby, at service 1150 1515 2665 0.002
door to right of M 1
stairwell, towards Barber
Shop
SM092101-35 A Level. Bankers Trust. 1437 1633 1508 0,002
corner of Nassau and
Pine Street (unoccupied)
SM092 1 0 1-36 C Level, Bankers Trust, 1452 I640 1404 0,002
Nassau side, three
columns from Wall Street
SM092 1 0 1-37 E Level, mechanical area 1508 1644 1248 <0.002
SM092101-38 Ml Floor, Barber Shop, 1526 I710 1352 0.003
hallway
fibers per cubic centimeter of air
a
b
less than
Analytical Method: NIOSH 7400, A Rules
Limit of Detection: 2,000 fibers per filter
G
NYC-WTC 000094890
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