NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
7 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗Document / 5 pages
Indoor COCs benchmark levels discussion, March-April 2002
Machine-extracted title · confidence 72%Multi-agency discussion of benchmark reference levels for probable indoor contaminants of concern, including asbestos in air.
NYC-WTC_000139416–000139420Folder label: “2002 E-Mail Sent M. Gilsenan”
Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
At ‘ +-------------------------------------------------- II I background or E-04 (30 I maintain recommended (i.e., I yr)/HQ =1 to E-04 (1 yr)/HQ 1 diligent wet/HEPA) cleaning 10 I methods - consider 1 additional monitoring ■+------------------------------------
III I < background or E-04 (30 1 no further action 1 yr)/HQ = 1 1 ----- +------------------------- +----------------------------------------
Asbestos (settled dust)
I I I Tier I Screening Value Action 1 I + I I I I > 10,000 fibers/cm2 | aggressive cleaning I I I (TEM AHERA counting rules) i (professional?) - if I I I I readings persist take 1 I I I additional action to reduce | I 1 I exposure | I ■+ +---------------------------- 1 I II I 1,000 (or background) I maintain recommended (i.e., | 1 1 10,000 f/cm2 I diligent wet/HEPA) cleaning | I 1 methods - consider I 1 I additional monitoring I ----- +-----------------------------+------------------ 1 III I < background or 1,000 f/cm2 | no further action I I (whichever is greater) 1 1 + + 1
Asbestos (indoor air)
___!___________ I ■+
I Tier | Screening Value 1 Action I '+ I I .028 f/cc (E-04 X 1 I aggressive cleaning | I I yr) I (professional?) - if 1 I I PCM/PCME measurement I readings persist take | I I 1 additional action to reduce I I I 1 exposure 1 I ,+---------------------------- 1 I II I .0004 (or background) I maintain recommended (i.e., 1 I I .028 f/cc 1 diligent wet/HEPA) cleaning I I i I methods - consider I I I additional monitoring I +---------------------- I III I < background or .0004 f/cc I no further action I I (whichever is greater) I I +----------------------
2
NYC-WTC_000139417
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NYC-WTC_000139417Source: NYC Law Department, mirrored locally
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NYC-WTC_000164835
DEP memo forwarding draft benchmark levels for indoor contaminants of concern developed by DHHS, EPA, and OSHA for interagency review and approval.
8 shared non-person entities · 1 shared topics · similarity 0.985
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164877
Proposal detailing a survey to assess seven preliminary contaminants in 100 buildings within a four-block radius of the World Trade Center site.
5 shared non-person entities · 1 shared topics · similarity 0.964
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000154652
Internal tracking document for managing reports, comments, and actions related to environmental compliance cases.
6 shared non-person entities · 1 shared topics · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000151635
EPA memorandum detailing plans for asbestos wipe sampling, projecting airborne dust levels, and estimating increased cancer risks from WTC dust exposure.
6 shared non-person entities · 1 shared topics · similarity 0.959
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140170
EPA memorandum on wipe sampling methods for asbestos in Lower Manhattan buildings, resuspension projections, and cancer risk estimates from WTC dust exposure.
6 shared non-person entities · 1 shared topics · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140259
Memorandum detailing procedures for asbestos wipe sampling in Lower Manhattan and estimating associated cancer risks from dust exposure.
6 shared non-person entities · 1 shared topics · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.954
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000125845
Draft fact sheet from DOH and DEP addressing tenant concerns regarding asbestos fibers at 105 Duane Street.
6 shared non-person entities · 1 shared topics · similarity 0.952
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176160
Draft assessment summarizing eight months of monitoring data regarding air, dust, and water contaminants at the WTC site and surrounding areas.
6 shared non-person entities · 1 shared topics · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140138
EPA memorandum addressing World Trade Center asbestos contamination status and agency efforts to provide information on the situation.
6 shared non-person entities · 1 shared topics · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162222
EPA staff distributed an environmental laboratory report to federal and city agencies on May 15, 2002.
6 shared non-person entities · 1 shared topics · similarity 0.951
machine-extracted · confidence unavailable · Check page ↗More like this page
Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000164835
DEP memo forwarding draft benchmark levels for indoor contaminants of concern developed by DHHS, EPA, and OSHA for interagency review and approval.
Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000160788
DEP discussion of drafting water use exemption notice for contractors performing necessary WTC hazard remediation and facade cleanup work.
Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164877
Proposal detailing a survey to assess seven preliminary contaminants in 100 buildings within a four-block radius of the World Trade Center site.
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
Similarity score 0.973 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000164835
DEP memo forwarding draft benchmark levels for indoor contaminants of concern developed by DHHS, EPA, and OSHA for interagency review and approval.
Similarity score 0.969 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163606
Strawman benchmarks for probable indoor contaminants of concern related to WTC assessment.
Similarity score 0.964 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Others also read
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