Sampling protocol developed to assess residential exposure to airborne and settled dust near the World Trade Center.
NYC-WTC_000178091–000178127
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
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Sample/Analytical Methods
Parameter Enyironmental.Media Sampling/Analytical Method Sample Flow/time Analytical LOP / LOO*
Asbestos I/O** air NIOSH 7400, NIOSH 7402 16L/min-4hr(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
PMlOand PM2.5 O air EPA Method # (continuous real-time) 12-hr Breathing zone sample height
Inhalable (<100pm) 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 s 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 I
pH I/O dust EPA SW 846 Mtd 9045C (sods) 10-25 g
asbestos. I/O dust PLM, and if <1% TEM
silica, gypsum, I/O dust XRD gypsum, fiber glass, calcite
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NYC-WTC_000178098
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000176041
Draft document outlining ambient and indoor air sampling strategies for residential areas near the World Trade Center site.
15 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
19 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
19 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164732
Draft spreadsheet of asbestos sampling results from residential locations collected November-December 2001, circulated for review.
19 shared non-person entities · 1 shared topics · similarity 0.982
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.
19 shared non-person entities · 1 shared topics · similarity 0.981
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.
19 shared non-person entities · 1 shared topics · similarity 0.981
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.
16 shared non-person entities · 1 shared topics · similarity 0.979
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 0.979
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.976
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 0.976
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
Similarity score 0.984 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164732
Draft spreadsheet of asbestos sampling results from residential locations collected November-December 2001, circulated for review.
Similarity score 0.983 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
Similarity score 0.981 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.980 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176041
Draft document outlining ambient and indoor air sampling strategies for residential areas near the World Trade Center site.
Similarity score 0.974 (not a probability)
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.
Similarity score 0.960 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
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NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
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NYC-WTC_000164732
Draft spreadsheet of asbestos sampling results from residential locations collected November-December 2001, circulated for review.
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NYC-WTC_000139656
Forwarded spreadsheet compiling residential asbestos sampling results collected in November-December 2001, including Building 11 reoccupancy assessment.
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NYC-WTC_000164960
Draft compilation of asbestos air samples collected from residential areas November-December 2001 by NYC DOH and ATSDR.
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