15 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗Document / 11 pages
ATSDR/DHAC recommendations for building sampling, Sept 2001
Machine-extracted title · confidence 96%Draft document outlining concepts and priorities for sampling buildings near the WTC to identify worst-case contamination scenarios.
NYC-WTC_000152814–000152824Page image
OCR text
OCR status: ok · source: pdftotext
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■D o c o o Sample/Analytical Methods [NOTE: action/screening levels will dictate detection limit needs and will change sample times] CT o' cn "0 KJ o 00 Parameter Environmental.Mcdia Sampling/Analytical Method Sample Flow/time Analytical LOP / LOO* KJ 9L I/O" air NIOSH 7400, NIOSH 7402 2 L/min / 4 hrs? O Asbestos o o Breathing zone sample height c 3 CD 3 Total Suspended O air EPA Method # (continuous realtime) ? Particulates Breathing zone sample height
PMIO and PM2.5 O air EPA Method # (continuous real-time) ? Breathing zone sample height
Inhalable (<100pm) I/O air lOM personal sampler. Analyze each 2 L/min / 4 hrs? thoracic (<10pm) fraction for asbestos,(TEM), and for respirable (<4pm) crystalline silica, gypsum, calcite (XRD)
Respirable I/O air NIOSH 7500 2.2 L/min / 4 hrs? crystalline silica
pH I/O dust EPA SW 846 Mtd 9045C (soils) 10-25 g
asbestos I/O dust PLM, and if <1% TEM ?
asbestos, gypsum, I/O dust XRD 7 mica, calcite
magnesium I/O dust ICP (EPA? NIOSH?) 7
* LOD:Limit of analytical detection; LOQ: Limit of analytical quantitiation " 1: indoor; O: outdoor
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NYC-WTC_000152821Source: NYC Law Department, mirrored locally
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