NYC-WTC_000209424

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results for Freshkill Landfill Sampling Date and Time: 09/26/01 to 09/27/01 (1830 to 0730)

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 <5p >5m

9/27/01 00764 #1 720 Air <7 0 <0 004 0/3 <0 004 0 0 <8 89 <0 0048 9/27/01 00765 #2 720 Air <7 0 <0 004 0/1 <0 004 0 0 <8 89 <0 0048 9/27/01 00766 #3 720 Air <7 0 <0 004 0/2 <0.004 0 0 <8 89 <0 0048 9/27/01 00767 #4 720 Air <7 0 <0 004 0/1 <0.004 0 0 <8 89 <0 0048 9/27/01 00768 #5 720 Air <7 0 <0 004 0/1 <0.004 0 0 <8 89 <0 0048 9/27/01 00769 #6 700 Air <7 0 <0 004 0/2 <0 004 0 0 <8 89 <0 0048 9/27/01 00770 #7 720 Air <7 0 <0 004 0/1 <0 004 0 0 <8 89 <0 0048 9/27/01 02137 #8 720 Air <7 0 <0 004 0/1 <0 004 0 0 <8 89 <0 0048 9/27/01 02138 #9A 240 Air <7 0 <0 011 0/1 <0 oil 0 0 <8 00 <0 0128 9/27/01 02139 #9B 720 Air <7 0 <0 004 0/3 <0 004 0 0 <8 89 <0 0048 9/27/01 02140 10 720 Air <7 0 <0 004 0/0 <0 004 0 0 <8.89 <0 0048 oc# 04117 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) EPA 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)

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NYC-WTC_000209424