NYC-WTC_000208354

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results for Staten island Landfill Sampling Date and Time: 09/29/01 0700 to 1900

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 >5p

9/29/01 02161 #1 720 . Air 11:2. <0.004 0/0 <0^004 2 0 <8.89 <0.0048 9/29/01 02162 #2 720 Air <7.0 <0.004 0/1 <0.004 0 0 <8.89 <0.0048 9/29/01 02163 #3 720 Air <7.0 <0.004 0/0 <0.004 2 2 <8.89 <0.0048 9/29/01 02164 #4 720 Air <7.0 <0.004 0/1 <0.004 0 0 <8.89 <0.0048 9/29/01 02165 #5 0 Air <7.0 0/0 0 0 <8.0 9/29/01 02166 #6 0 Air <7.0 2 0 <8.0 9/29/01 02167 #7 720 Air <7.0 <0.004 <0.004 2 0 <8.89 <0.0048 9/29/01 02168 #8 720 Air <70 <0.004 <0.004 2 2 <8.89 <0.0048 9/29/01 02169 9A 0 Air <7.0 2 2 <8.0 9/29/01 02170 9B 720 Air <7.0 <0.004 <0.004 2 2 8.89 0.0048 9/29/01 01641 #10 0 Air <7.0 0/0 0 0 <8.0 coc# 04026 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 No results available because no air volume were taken 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) EPA 40CFR Part 763 (AHERA) Standard criteria: EPA40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM). 70 S/mm’. volume 1200 L, for 25 mm filter (TEM)

ERT; 10/01/01 2.00 PM

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NYC-WTC_000208354