NYC-WTC_000210686

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet sample area analyzed

Client flame: GCI Environmental Advisory, Inc. Job#: 201092763 Volume (liters): 900.0 Lab Sample #: 02 Filter Type / Filter Area: MCE 385 mm2 Client Sample #: 22-25C-9/21-07 Grid Opening Size: 0.01000 Received: 09/22/2001 17;15:00 Area Examined: 0.10000 mm2 Date Analyzed: 09/22/2001 Magnification: 20,000 Scope #: Accelerating Voltage: 100 KeV Analysis Performed by: Aleksandr Barengolts Gnd Length Width Morphology EDS Onent SAED Photo Location Fiber gM Fiber Type Opening gM A9-3/3B i NSD A9-3/3C 2 NSD A9-3/3E 3 NSD A9-3/3F 4 NSD A9-3/3G 5 NSD A9-3/3H 6 NSD A9-3/3K 7 NSD A10-4/4B 8 NSD A10-4/4C 9 NSD A10-4/4E 10 NSD

NSD: No Asbestos Structures Detected Comments Structure Density Concentration 10 (str/mm2) (str/cc air) Grid Evaluation Total Grid Openings; Chrysotile Asbestos Structures: 0 <10 <0.0043 13 Grid Openings Covered > 50% <10 <0.0043 3 Intact Grid Opening > 50% Amphibole Asbestos Structures: 0 0 <10 <0.0043 3 Undissolved Filter < 10% Asbestos Structures >=5 microns: Total Non-Asbestos Structures: 3 Folded Replica < 50% Total Asbestos Structures: 0 <10 <0.0043 13 Filter Loading < 10% Analytical Sensitivity: 10 0.0043 3 Particulate Even

CITY_21MC100_002861810

NYC-WTC_000210686