NYC-WTC_000210958

NYC 9/11 Public Portal Document

NYC Emergency Response Asbestos Air Sampling Results NYC ER/NJ DEP

Date Sampling Sample PCM by NIOSH 7400 TEM (AHERA) Sampled Sample No. Location Volume Matrix f/mm^ f/cc 0.5p - 5p ___ Sp S/mm’ S~f/cc* S #)____ 10/12/01 02001 Liberty Park 480 Air <7.0 <0.006 0 0 <6.15 <0.0049 10/12/01 02002 CITGO Terminal 480 Air <7.0 <0.006 0 0 <6.15 <0.0049 10/12/01 02003 EMC Terminal 480 Air <7.0 <0.006 0 0 <6.15 <0.0049 10/12/01 02004 Shell Terminal 480 Air <7.0 <0.006 0 0 <6.15 <0.0049 coc#04191

PCM: Phase Contrast Microscopy by NIOSH 7400 TEM: Transmission Electron Microscopy (TEM) EPA 40CER Part 763 (AHERA). Sample volume is below recommended limit of the method. ’Structure (S) roughly equivalent to Eiber (f) Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm^, Volume 1200 L, for 25 mm filter (TEM)

Period in which samples were collected and retrived Sampling Location Sampling Times Liberty Park 1240 (10/12/01) - 2040 (10/12/01) CITGO Terminal 1340 (10/12/01) - 2140 (10/12/01) ERT: 10/15/01 09:50 AM EMC Terminal 1405 (10/12/01) - 2205 (10/12/01) Shell Terminal 1450 (10/12/01) - 2250 (10/12/01)

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NYC-WTC_000210958