NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet sample area
analyzed ~
Client Name: GCI Environmental Advisory, Inc.
Job #: 201092976 Volume (liters): 900.0
Lab Sample #: 01 Filter Type / Filter Area: MCE 385 mm2
Client Sample #: 33-9/24-33 Grid Opening Size: 0.01000
Received: 09/25/2001 14:48:41 Area Examined: 0.09000 mm2
Date Analyzed: 09/25/2001 Magnification: 20,000
Scope #: Accelerating Voltage: 100 KeV
Analysis Performed by:
Glenn Massey
Length Width Morphology EDS Orient. SAED Photo
Location Fiber Fiber Type
Opening
C7-4/3C 1 1 3.1 0.12 Chrysotile Bundle Mg, Si, Fe
C7-4/3C 1 2 1.4 0.05 Chrysotile Matrix Mg, Si, Fe \
C7-4/3C 1 3 1.7 0.05 Chrysotile Matrix Mg, Si, Fe
C7-4/3E 2 1 1.3 0.05 Chrysotile Matrix Mg, Si, Fe /
C7-4/3E 2 2 2.0 0.10 Chrysotile Matrix Mg, Si, Fe \ U
C7-4/3F 3 1 3.5 0.10 Chrysotile Matrix Mg, Si, Fe / Li
C7-4/3G 4 NSD U
C7-4/3H 5 NSD U
C8-4/6C 6 1 1.2 0.05 Chrysotile Matrix Mg, Si, Fe / U
C8-4/6E 7 1 1.2 0.08 Chrysotile Matrix Mg, Si, Fe \ U
C8-4/6F 8 1 0.9 0.10 Chrysotile Matrix Mg, Si, Fe \ U
C8-4/6G 9 1 2.8 0.15 Chrysotile Bundle Mg, Si, Fe / U
NSD: No Asbestos Structures Detected
Comments
Structure Density Concentration
(str/mm2) (str/cc air) Grid Evaluation
Total Grid Openings: 9
Chrysotile Asbestos Structures: 10 111.1 0.0475 ® Grid Openings Covered > 50%
Amphibole Asbestos Structures: 0 <11.1 <0.0048 Z Intact Grid Opening > 50%
Asbestos Structures >=5 microns: 0 <11.1 <0.0048 Z Undissolved Filter < 10%
®Folded Replica < 50%
Total Non-Asbestos Structures:
10 111.1 0.0475 ® Filter Loading < 10%
Total Asbestos Structures:
Analytical Sensitivity: 11.1 0.0048 ® Particulate Even
NYC-WTC 000120631
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