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NYC-WTC_000220442

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NYC 9/11 Public Portal Document

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

REPORT OF AIR SAMPLE ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY|

Project ID: 0211358 Client Name: J. Resnick & Sons Project Name: J. Resnick & Sons Field ID: 01

Sample ID :AEM990 09424 Date Received: 9/20/01 Sample Description : Lobby of 75 Park Place Security Desk

Filter Composition: MCE Porosity: 0.45 micron FiltLot#: EX55

Filter Diameter: 25 mm Effective Filter Area: 385 mnr? Air Volume: 1250 Itr

Total Filter Area Analyzed : 0.0630 mm^

# Grid Openings : 7 Avg Grid Opening Area :0.0090 mm^ Grid Lot#: 4083 Analytical Sensitivity : 0.0049 asbestos struct/cm^

Number of Asbestos Number of Structure Types : Structures: LENGTH FIBER CLUSTER l\4ATRIX BUNDLE Chrysotile: 0 0.5 um < L < 5 urn 0 0 0 0 Amphibole: 0 L>5um 0 0 0 0

A: TOTAL CHRYSOTILE STRUCTURE CONCENTRATION : LT ANYL SENS structure/cn^ B: TOTAL AMPHIBOLE STUCTURE CONCENTRATION : LTANYL sens structure/cnP C: TOTAL ASBESTOS STUCTURE (A+B) CONCENTRATION : LTANYL sens structure/crrP

TOTAL ASBESTOS CONCENTRATION : IN AIR LTANYLSENS structure/cnr? ON FILTER LTANYL SENS structure/mm2

Micrograph ID # for Reported Structures: None None

Reported for Ambient Labs Inc. by :

Analysis Date: 9/20/01 INNA NURIK Environmental Analyst * Overloaded. NA - Analyzed

CITY DEP WORBY CANNATA SUBP 000004436

NYC-WTC_000220442

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NYC-WTC_000220442Source: NYC Law Department, mirrored locally

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