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NYC-WTC_000209172

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000209172
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NYC 9/11 Public Portal Document

WTC SAMPLING REQUIRMENTS Compound Task Frequency Sample Type Per Area Method Lead T orch 1 per shift Full shift- Each(4) NIOSH 7300 cutting TWA Asbestos (a) torch 1 per shift 8 hour TWA Each (4) j NIOSH 7400 cutting with TEM (b) rubble confirmation removal Crystalline Rubble 1 per shift 8 hour TWA Each (4) : XRD 7500 silica removal (respirable) Aromatic Rubble 2 per week 8 hour Each (4) NIOSH 1501 hydrocarbon removal BTEX Operators 2 per week 8 hour Each (4) NIOSH 1500 Diesel Truck 1 per week 8 hour Each (4) NIOSH 5040 exhaust drivers Carbon (a) torch 1 per shift (a)Peak Each (4) DRl with Monoxide cutting (c) Range data record (b) truck (c) Avg. drivers PAHs ■Rabble 2 per week Compound Each (4) GC/MS removal identification Formaldehy Rubble 1 per week 8 hour Each (4) I NIOSH 3500 de removal Asbestos Break area 2 per week 8 hour 2 per week TEM Crystalline Break area 2 per week 8 hour :Total 1 per week XRD 7500 Silica and respirable

CITY_21MC100_002843391

NYC-WTC_000209172

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NYC-WTC_000209172Source: NYC Law Department, mirrored locally

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OSHA WTC air sampling results, Oct 20, 2001

NYC-WTC_000178367

Area air sampling results for benzo(alpha)pyrene and volatile organic compounds collected on the west side of WTC-1 on October 20, 2001.

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