NYC-WTC_000208355

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results for Staten Island Landfill Sampling Date and Time: 09/30/01 0730 to 1830

PCM by NIOSH 7400 TEM by NIOSH 7402 TEM AHERA) Sampling Sampling Sample f/mm’ f/cc AF/NAF Adjusted Structures (#) S/mm’ S-f/cc* Date Sample No. Location Volume Matrix TEM f/cc <5u >Sp

9/30/01 01654 #1 653 <7.0 <0.004 <0.004 0 0 <8.00 <0.0047 9/30/01 01662 #2 636 <7.0 <0.004 <0.004 2 2 <8.00 <0.0048 9/30/01 01661 #3 602 <7.0 <0.004 0/0 <0.004 2 2 <8.00 <0.0051 9/30/01 01660 #4 394 Air <7.0 <0.007 0/0 <0.007 0 0 <8.00 <0.0078 9/30/01 01658 #5 614 Air <7.0 <0.004 <0.004 2 0 <8.00 <0.0050 9/30/01 01657 #6 614 Air <7.0 <0.004 0/0 <0.004 0 0 <8.00 <0.0050 9/30/01 01656 #7 545 Air <7.0 <0.005 0/0 <0.005 0 0 <8.00 <0.0057 9/30/01 01655 #8 611 Air <7.0 <0.004 0/0 <0.004 0 0 <8.00 <0.0050 9/30/01 01652 #9A 579 Air <7.0 <0.005 0/0 <0.005 0 0 <8.00 <0.0053 9/30/01 01653 #9B 582 Air <7.0 <0.005 0/0 <0.005 2 0 <8.00 <0.0053 9/30/01 01651 #10 564 Air 11.46 0.008 0/2 <0.005 0 0 <8.00 <0.0055 COC# 04014

NS: Not sampled AF/ANF: Asbestos fibers/Non asbestos fibers Sample volume is below recommended limit of the method; 'Structure (S) roughly equivalent to fiber (f) NA: not analyzed due to overloading of particulates

NIOSH 7400: Fiber Analysis of Air samples via NIOSH 7400, Revision 3, Issue 2. 8/15/94 NIOSH 7402: Asbestos Analysis of Air samples by Transmission Electron Microscopy Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) ERA 40CFR Part 763 (AHERA) Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm\ volume 1200 L, for 25 mm filter (TEM)

ERT: 10/02/01 9; 50 AM

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NYC-WTC_000208355