Air Sample Fiber Analysis Report, Nov 2001

NYC 9/11 Public Portal Document

New York Lab 307 West 38th Street, New York, NY 10018 Phone: 212-290-0051 Fax: 2122900058 Email:

Attn: CTSI-Consulting & Testing Services, Inc. Customer ID: CTSI50 622 George Rd. Customer PO: North Brunswick, NJ 08902 Received: 11/21/01 5:08 PM Fax: (732) 729-1803 Phone: 732-729-1800 EMSL Order. 030108460 Project: 115 Broadway EMSL Project ID: Analysis Date: 11/22/01

Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8115!94 LOD Fibers/ Fibers/ Sample Location Sample Date Volume Fibers Fields (fib/cc) mm2 cc Notes

13 11th E side 11/21/01 1560.00 <5.5 100 0.002 <7.0 <0.002 030108460-0013

14 10th W side 11/21/01 1800.00 <5.5 100 0.001 <7.0 <0.001 030108460-0014

15 8th N side 11/21/01 1680.00 <5.5 100 0.002 <7.0 <0.002 030108460-0015

16 8th N side 11/21/01 1560.00 <5.5 100 0.002 <7.0 <0.002 030108460-0016

17 7th fl E side 11/21/01 1800.00 <5.5 100 0.001 <7.0 <0.001 030108460-0017

18 6th fi elevator lobby 11/21/01 1800.00 5.5 100 0.001 7.01 0.002 030108460-0018

19 5th E side 11/21/01 1440.00 17.0 100 0.002 21.66 0.006 030108460-0019

20 4th elevator lobby 11/21/01 1800.00 11.0 100 0.001 14.01 0.003 030108460-0020

21 3rd fl E side 11/21/01 1800.00 10.5 100 0.001 13.38 0.003 030108460-0021

22 2nd fl elevator lobby 11/21/01 1560.00 9.0 100 0.002 11.46 0.003 030108460-0022

23 Lobby / trinity level 11/21/01 1800.00 10.0 100 0.001 12.74 0.003 030108460-0023

24 Field blank 11/21/01 0.00 <5.5 100 <7.0 Field Blank

030108460-0024

Thomas Michel Analyst Laboratory iv4f er or other approved signatory

Limit of detection is 7 fibers/mm. The laboratory Is not responsible for data reported in fibers/cc, which is dependent on volume collected by non-laboratory personnel. This report relates only to the samples reported above. This report may not be reproduced, except in full, without written approval by EMSL Analysis performed by EMSL Manhattan (NY State FLAP #11505)

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