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NYC-WTC_000196150

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000196150–000196154
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NYC 9/11 Public Portal Document

****DI{AFT****

Sample/Analytical Methods

Parameter Environmental.Media Sampling/Analytical Method Sample FloWtime Analytical LOD / LOQ*

Asbestos 1/0“ air NIOSH 7400, NIOSH 7402 16 L/min -4 hr (3840L) 0.010 f/cc (LOQ) Breathing zone sample height 5 hr (4800L) 0.008 f/cc 6 hr (5760L) 0.007 f/cc Total Suspended O air EPA Method # (continuous realtime) 12-hr Particulates Breathing zone sample height

PM10andPM2.5 O air EPA Method # (continuous real-time) 12-hr Breathing zone sample height

Inhalable (<100gm) I/O air lOM personal sampler. Analyze each 2 L/min -5 hr (600L) 30 ug / 50 ug/m’ thoracic (<10pm) fraction for asbestos,(TEM), and for respirable (<4pm) crystalline silica, gypsum, fiberglass calcite (XRD)

Respirable I/O air NIOSH 7500 2.5 L/min-5.3 hr(800L) 5 ug / 6 ug/m’ crystalline silica

pH I/O dust EPA SW 846 Mtd 9045C (soils) 10-25 g

asbestos I/O dust PLM, and if <1% TEM li.

silica, gypsum, I/O dust XRD (I

gypsum, fiber­ o glass, calcite

I—i

os *^LOD;Limit of analytical detection; LOQ; Limit of analytical quantitation o ** I: indoor; O: outdoor o Io o co Page 7 of o co co co (JI co

NYC-WTC_000196154

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NYC-WTC_000196154Source: NYC Law Department, mirrored locally

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