OCR status: ok · source: pdftotext
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o o CD § ■D o Sample/Analytical Methods [NOTE: screening levels dictate detection/quantitation limit needs] c o CT o o' cn Parameter EnvironmentaLMedia Sampling/Analytical Method SamBleFTow/time Analytical LOP / LOQ "0 o ro 4^ 9L Asbestos I/O air NIOSH 7400, NIOSH 7402 16 L/min -4 hr (3840L) 0.010 ficc (LOQ) O o Breathing zone sample height 5 hr (4800L) 0.008 ficc o c 6hr(5760L) 0.007 f/cc 3 o Total Suspended O air EPA Method # (continuous realtime) 24-hr 3
Particulates Breathing zone sample height
PM10andPM2.5 Oair EPA Method # (continuous real-time) 24-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 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 u asbestos I/O dust PLM, and if <1% TEM
asbestos, gypsum, I/O dust XRD mica, fiberglass calcite
* LOD:Limit of analytical detection; LOQ: Limit of analytical quantitation ** I: indoor; O: outdoor
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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 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000152825
Draft protocol establishing procedures for evaluating airborne and settled dust in residential and commercial areas near the World Trade Center.
16 shared non-person entities · 1 shared topics · similarity 0.998
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.
14 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153241
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 0.991
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.
18 shared non-person entities · 1 shared topics · similarity 0.984
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.
17 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
18 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.
18 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164784
Transmission of revised asbestos sampling results for residential samples collected November-December 2001.
17 shared non-person entities · 1 shared topics · similarity 0.982
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.
15 shared non-person entities · 1 shared topics · similarity 0.982
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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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_000164361
Notice from NYC Law Department instructing staff to preserve original WTC documents as evidence for potential litigation.
Filed in the same folder
NYC-WTC_000164362
Cover sheet from the Council on Environmental Quality regarding sample handling and documentation in October 2003.
Filed in the same folder
NYC-WTC_000164365
DEP memo requesting an emergency waiver of the overtime cap for employees performing hazardous materials operations at the WTC site.
Filed in the same folder
NYC-WTC_000164367
DEP hazardous materials daily report for WTC site dated September 15, 2001.
Filed in the same folder
NYC-WTC_000164369
DEP memo documenting staff members supporting air quality monitoring efforts following the World Trade Center tragedy.
Filed in the same folder