OCR status: ok · source: pdftotext
z z ■<
o o i 1^ co
■D o o Sample/Analytical Methods [NOTE: action/screening levels will dictate detection limit needs and will change sample times] c CT o o' cn KJ Parameter Environmental.Media Sampling/Analytical Method Sample Flow/time Analytical LOD / LOO* "0 o CD 9L Asbestos I/O” air NIOSH 7400, NIOSH 7402 2 L/min / 4 hrs? O o Breathing zone sample height o c 3 CD Total Suspended O air EPA Method # (continuous realtime) ? 3
Particulates Breathing zone sample height
PM10andPM2.5 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) 1 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 ? mica, calcite
magnesium I/O dust ICP (EPA? NIOSH?) ?
’ LOD:Limit of analytical detection; LOQ: Limit of analytical quantitiation ” 1: indoor; O: outdoor
Page 7 of
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
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 · Same agency, volume and box · similarity 1.000
machine-extracted · confidence unavailable · Check page ↗16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.999
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.
14 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.992
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.
15 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.991
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.
15 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.987
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 · Same agency, volume and box · similarity 0.981
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.
14 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.981
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_000164960
Draft compilation of asbestos air samples collected from residential areas November-December 2001 by NYC DOH and ATSDR.
16 shared non-person entities · 1 shared topics · similarity 0.981
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.
15 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000139712
Series of emails forwarding a draft memo between DEP staff members for review and finalization.
16 shared non-person entities · 1 shared topics · similarity 0.979
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.
16 shared non-person entities · 1 shared topics · similarity 0.979
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
Page similarity is temporarily unavailable or this page has no indexed vector.
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_000141585
Map showing the condition of buildings at the World Trade Center site as of September 21, 2001.
Cited alongside this record in an Ask answer
NYC-WTC_000148952
Table listing volatile organic compound (VOC) sampling sites and dates outside of Ground Zero from September 2001 to January 2002.
Cited alongside this record in an Ask answer
NYC-WTC_000148742
Notice instructing staff to preserve original World Trade Center documents for potential legal actions against the City.
Cited alongside this record in an Ask answer
NYC-WTC_000151742
Letter responding to correspondence regarding the EPA World Trade Center Cleanup Program, noting that extensions through December 28, 2002, were sufficient for registration.
Cited alongside this record in an Ask answer
NYC-WTC_000141083
EPA daily summary of environmental sampling and analysis for air, dust, water, and sediments at the World Trade Center site in October 2001.
Cited alongside this record in an Ask answer