NYC-WTC_000186549
Laboratory analysis of asbestos air samples collected at the World Trade Center site on September 19-22, 2001.
4 shared non-person entities · similarity 0.957
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NYC-WTC_000199932
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NYC 9/11 Public Portal Document rnvix. J.U/ J.O llxgllki nA
OCT-03-2001 14:46 NYC DDC 71S 391 1506 P.17/18
U.S. Environmental Protectioa Agency Sampling Situation Report Saturday, September 29,2001 (11:30 AM) Fixed Ambient Air Sampling Locations (Asbestos) NYC / ER (Scpt.26,12:00 noon to 12:00 midnight) O All 16 samples (including 1 duplicate) were below the OSHA PCM standard and were also below the NYC reentry standard. However confirmatory TEM analysis showed that 4 of these 16 samples were above the AHERA standard (70S/nim’). (Note; Sample volumes collected were lower than the recommended volumes bui were adjusted to determine if they exceeded established standards.) O The four samples exceeding the AHERA standard had results of 163 s/eam2,118 S/mm2, 296 s/mm2, and 74 s/mm2 and conesponded to locations D (East End of Albany Street at Greenwich Street), F (Northern media strip of Vesey and West Street), K (West Street and Albany Street in median strip) and Q (Barclay and West Street (center island). respectively. All these samples are within the immediately impacted area. Fixed Ambient Air Sampling Locations (Asbesros) NYC/ER(Sept.28, 12:00 midnight - 12:00 noon) O All 17 samples (including I duplicate) were below the OSHA PCM standard and were also below the NYC reentry standard. No samples exceeded the AHERA standard of 70S/mm< New Jersey O Sept 26 - all 4 samples were below the established standards. NYC Bulk/Dust Samples (Landfill) Eight samples taken on Sept. 2S at the landfill were noo-detect for asbestos. Landfill Air Sampling locations (Asbestos) 11 air samples taken on Sept. 26 (8:00 AM - 6:00 PM) were below the established standards for all the methods analyzed. 11 air samples taken on Sept. 27 (7:30 AM - 6;50 PM) were below the established standards for all the methods analyaed. 11 air samples taken on Sept 26-27 (6:30 PM on Sept .26 - 7:30 AM on Sept .27) were below the established standards for all the methods analyzed. Direct Reading Instruments Nothing of significance identified.
NVC Ambiept Water Sampling
The seven water samples taken on Sept.25 sho^ved no levels above the established Drinking Water MCL for asbestos of 7 MFL (million of fibers per liter).
OCT-03-20B1 16:27 SIX P.18
CITY_21MC100_011173860
NYC-WTC_000199932
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NYC-WTC_000199932Source: NYC Law Department, mirrored locally
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Summary of asbestos air sampling results from October 1, 2001, including PCM and TEM standard comparisons for NYC and NJ locations.
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