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Document / 7 pages

Air sample analysis report for WTC sampling, April 2002

Machine-extracted title · confidence 95%

Laboratory report detailing phase contrast microscopy results for airborne fiber counting from World Trade Center samples collected in April 2002.

NYC-WTC_000161713–000161719

Folder label: “WTC- Air Data

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Scanned page image, NYC-WTC_000161717
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NYC 9/11 Public Portal Document

WKP LABORATORIES, INC AIR SAMPLE-ANALYSIS REPORT PHASE CONTRAST MICROSCOPY

CLIENT; WARREN & PANZER ENGINEERS. P.O. TURNAROUND TIME 24HRS WKP FILE# 501-01 SAMPLE DATE 4/9/02 WKPLOGI.D.# NQ20449 RECEIVED DATE 4»/02 Centrad#: WTCAR2 analysis date 4/10/02 REPORT DATE 4/10/02 CLIENT JOB: NYC Department el Environmental Protection

CUENTJOB#: 1079.01.01

LOCATION S.W. Area/Site Map AIRBORNE FIBER COUNTING. PHASE CONTRAST MICROSCOPY, NIOSH 7400. NIO8H PAT Lab ANALYSIS: NO. 07186; NY STATE ELAP Lab NO. 11251. COLLECTION DEVICE; 25 mm MCE Filter Caseette; CoBecBon Area o 385 aq mm; i. ReW Area =■ 0,00763 sq mm.

SAMPLE WERE COLLECTED BY: Lawrence Baer

SUMMARY OF ANALYSIS

CUENT VOLUME FIBERS/ FIBERS/ SAMPLE# Site# SAMPLE LOCATION (LITERS) sqmm cc 1079.01.01 001 Field blank 0.0 002 Field Blank 0.0 003 27 Gateway Plaza Park Area 075 6.4 0.0O4 004 31 South End Ave. and Albany Street 67S 8.9 0.005. 005 32 Vitest Street end Albany Place 675 6.4 0.004 006 33A Rector Place by the Park Place 673 10.2 0,006 007 34 W. Thames Street • Along Waterfront 675 3.6 <0.004 008 37 West of Third Place 675 8.9 0.005

NOTES: 1.5,5 Bbera/lOO fields was used to calculate the Umil of detection (LCD). Results below the LOO have no statistical validity. 2. Samples were net collected by WKP Laboratories. Inc. 3. The Federal EPA Clearance Critical following an ashaatos abatement project Is 0.010 fibers/cc. 4. PCM air samples tMlI be diapoaed of after 3 months unless otherwise directed by dient In writing.

DM LABORATORY ANALYST laboratory director

NYC-WTC_000161717

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NYC-WTC_000161717Source: NYC Law Department, mirrored locally

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A single-page air quality data sheet from the Department of Environmental Protection regarding the World Trade Center site.

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