Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
NYC-WTC_000164784–000164829
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
SainDle/AnalyticalMetho^ Parameter Environmental Media Sampling/Analytical Method Sample Flow/time Analytical LOD/LOQ*
Asbestos** I/O’” 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
Inhalable (<100« m) I/O air ACGIH/ISO sampling criteria 4 L/min -3.2 hr (750L) 30 ug / 40 ug/m’ particles Gravimetric, XRD (crystalline silica, gypsum, mica, and calcite), and SEM (fibrous glass).
Thoracic (<10* m) I/O air EPA IP-lOA/Gravimetric, 4L/min-3.2hr (750L) 30 ug/ 40 ug/m’ particles XRD (crystalline silica, gypsum, mica, and calcite), and SEM (fibrous glass) Respirable I/O air NIOSH 7500/ 2.5 L/min-5.3 hr(800L) 5 ug / 6 ug/m’ crystalline silica Gravimetric, XRD (gypsum and respirable (<4* m) mica, and calcite), and SEM 30 ug/ 90 ug/m’ particles (fibrous glass) Respirable (<2.5* m) I/O air EPA IP-lOA/Gravimetric 4L/min - 3.2 hr (750L) 30 ug/ 40 ug/m’ particles XRD (crystalline silica, gypsum, mica, and calcite), and SEM (fibrous glass)
pH I/O dust EPA SW 846 Mtd 9045C (soils) 10-25 g asbestos I/O dust NY State Method 198.1 (PLM) 10-25 g and if <1% NY State Method 198.4 (TEM) silica, gypsum, I/O dust XRD (SEM for fibrous glass) 10-25 g fiberglass, mica, and calcite * LOD:Limit of analytical detection; LOQ: Limit of analytical quantitation ” use professional judgement re: asbestos sampling times to avoid filter overload (collection of 2 samples with different sampling times may be necessary)
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NYC-WTC_000164792
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NYC-WTC_000164732
Draft spreadsheet of asbestos sampling results from residential locations collected November-December 2001, circulated for review.
24 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164960
Draft compilation of asbestos air samples collected from residential areas November-December 2001 by NYC DOH and ATSDR.
24 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
24 shared non-person entities · 1 shared topics · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139656
Forwarded spreadsheet compiling residential asbestos sampling results collected in November-December 2001, including Building 11 reoccupancy assessment.
23 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153220
Draft protocol outlining objectives and locations for assessing airborne and settled dust exposures in residential areas.
16 shared non-person entities · 1 shared topics · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153258
Draft protocol for assessing airborne and settled dust exposures in residential areas following the World Trade Center collapse.
17 shared non-person entities · 1 shared topics · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149537
Instructions and sections for collecting sample location data from a specific building interior.
24 shared non-person entities · similarity 0.986
machine-extracted · confidence unavailable · Check page ↗17 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗16 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000152814
Draft document outlining concepts and priorities for sampling buildings near the WTC to identify worst-case contamination scenarios.
15 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗16 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153247
Draft protocol for assessing airborne and settled dust exposures in residential areas following the World Trade Center collapse.
15 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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