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Asbestos air sample TEM analysis, November 2001, field 2881-01

Machine-extracted title · confidence 100%

Air sample analysis by transmission electron microscopy for asbestos structure concentrations from November 14, 2001.

NYC-WTC_000095939–000095943

Folder label: “44 West Broadway Block: 127 Lot: 18 BIN: 1001415 59-75 Park Place, 253-267 Greenwich St. 64-84 Murray St.

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NYC 9/11 Public Portal Document

ambient labs inc. 159 West 25th Street New York,:NY 10001 ELAP #10865

I REPORT OF AIR SAMPLE ANALYSIS BY TRANSMISSION ELECTRON•.MICROSCOPY Project ID : 0211658 Client Name: Jack Resnick & Sons, Inc. Project Name: 75 Park Place Field ID: 2881-02

Sample ID : AEM990 11016 Date Received: 11/14/01 Sample Description:

Filter Composition : Porosity : 0.45 micron Filt Lot #: Filter Diameter: 25 mm Effective Filter Area: 385 mrr? Air Volume: 1365 Itr Total Filter Area Analyzed: 0.0630 mm2

# Grid Openings: 7 Avg Grid Opening Area :0.0090 mn? Grid Lot # : 4083 Analytical Sensitivity: 0.0045 asbestos struct/cm

Number of Asbestos Number of Structure Types : Structures: LENGTH FIBER CLUSTER MATRIX BUNDLE Chrysotile : 0 0.5um<L<5um

Amphibole: 0 L>5urn

A: TOTAL CHRYSOTILE STRUCTURE CONCENTRATION: LT ANYL SENS structure/cm3 B: TOTAL AMPHIBOLE STUCTURE CONCENTRATION: LT ANYL SENS structure/cm3 C: TOTAL ASBESTOS STUCTURE (A+B) CONCENTRATION: LT ANYL SENS structure/cm3

TOTAL ASBESTOS CONCENTRATION: IN AIR LT ANYL SENS structure/cm3 ON FILTER ' L?' ANYL SENS structure/mm2

Micrograph ID # for Reported Structures:

Reported for Ambient Labs Inc. by:

Analysis Date: 11/14/01 TAREK FATA Environmental Analyst * Overloaded, NA - Analyzed

NYC-WTC 000095940

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NYC-WTC_000095940Source: NYC Law Department, mirrored locally

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