NYC-WTC_000233233

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampiing Resuits for Freshkili Landfsi! Sampiing Date and Time: 09/28/01 0700 to 1900

PCM by NIOSH 7400 TEM by NIOSH 7402 TEM (AHERA) Sampling Sampiing Sample t/mm2 t/cc ARNAF Adjusted ructures ( S/mm2 S~f/cc Date Sample No. Location Voiume Matrix TEM f/cc <5iJ

9/28/2001 02149 #1 664 Air __________ <7.0__________ <0.004 0/1 <0.004 0 0 <8.00 <0.0046 9/28/2001 02150 #2 663 Air __________ <7,0__________ <0.004 0/0 <0.004 0 0 <8.00 <0.0046 9/28/2001 02081 #3 Air Pump fell-disconnected 0 0 9/28/2001 02082 #4 670 Air <7 0 <0.004 0/1 <0.004 0 0 <8.00 <0.0046 9/28/2001 02083 #5 673 Air <7.0 <0.004 0/0 <0.004 0 0 <8.00 <0.0046 9/28/2001 02084 #6 671 Air __________ <7 0__________ <0.004 0/0 <0.004 0 0 <8.00 <0.0046 9/28/2001 02085 #7 678 Air __________ <7 0__________ <0.004 0/0 <0.004 0 0 <8.00 <0.0045 9/28/2001 02087 #8 680 Air 7,64 0.004 0/1 <0.004 0 0 <8.00 <0.0045 9/28/2001 02086 #9A 683 Air <7.0 <0.004 0/1 <0.004 0 0 <8.00 <0.0045 9/28/2001 #9B Air No filter-pump not turned on 9/28/2001 02088 #10 706 Air 16.56 0.009 0/2 <0.004 1 0 8 0.0044 coc# 04025

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 Artaiysis ot Air samples by Transmission Electron Microscopy Asbestos Fiber Anaiysis by Transmission Eiectron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fber/cc (PCM), 70 S/mm2, volume 1200 L, tor 25 mm filler (TEM)

ERT:9/30/01 9:50 AM

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NYC-WTC_000233233