Agenda for a conference on the public health impact of September 11, featuring presentations from EPA, OSHA, and DOH officials.
NYC-WTC_000144643–000144686Folder label: “NADLER”
OCR status: ocr · source: ours
NYC 9/11 Public Portal Document Respirable Silica: Organic Componngs: Dioxins: OT'd = $6:2% -Z00z ET wey NYC-WTC_000144655 The overwhelming majority of 861 silica samples (excluding bulk end blank - _ samples) show no detectable levels of airborne silica. Huwever, 54 expocures’ exceeded the PEL. The highest sample result was appreximately twenty-one times the OSHA limit (jack hammening concrete 16 feet below grade), The other elevated exposures were approximately one to fourteen times the OSHA Iimtt, These exposures oconrred during: 1) pre-drilling /slurry walt 2) jack hammering, 3) rubble removal and loading operations near the Winter Garden; 4) during the breaking up of concrete in the pit; 5) while drilling the concrete slurry wall, 6) flagging operations in pit, and 7) while chipping concrete with power tools during demolition activities at 7 WTC’'s parking yamge. Most of the work areas where apparent overexposures to silica occusred were in the . rubble pile/pit; an srea where OSHA continues to enconrage the use of respiratory protection. OSHA has taken a total of 652 samples (excluding bulk and blank samples) for organic compounds such as acetaldehyde, acrolein, acrylositrile, benzene, 2-butanone, carbofurans, dioxin, PCBs, ethyl benzene, formaldehyde, Freon R-22 (chlorodifiouromethane), hexone, isocyanates (e.g. MDI, TDD, perchloroethyiene, polynuclear aromatics, phosgene, styrene, toluene, 1.3 butadiene, trichloroethylene, viny! chloride, ghutaraldehyde, and xylene. Screening samples initially showed elevates levels of some organic chemicals resulting from the fires burning in the rubble pile. Subsequent personal and axca samples show worker exposure levels to be below OSHA limits. However, one personal sample result for a benzene sample ken was found to be at the 8-br. OSHA Allowable Limit concentration of 1 pn. This was found - on a backhoe operator moving debris on 10/7/01. See information beluw for the specific counts in regards to polynuclear aromatics, Proon R-22, phosgene and dioxin. . OSHA has taken 10 dioxin samples (excluding blanks) in the plume over bot spote in (and around the perimeter of) the rubble pile. Dioxix levels detected Page 2 of 4
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000144741
Standard administrative notice requiring the retention of original World Trade Center records as evidence for future legal actions.
30 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145345
Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
38 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145510
Notice from NYC Law Department instructing staff to preserve World Trade Center documents for potential legal actions.
37 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000144723
Official correspondence from the NYC Law Department regarding the collection and preservation of World Trade Center documents for legal use.
16 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.974
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000144916
Large volume technical report containing environmental data and analysis related to the World Trade Center disaster site cleanup.
32 shared non-person entities · Same agency, volume and box · similarity 0.974
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000161636
Agenda listing panelists from federal agencies, unions, and city departments for a March 2004 conference on post-9/11 air quality.
27 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000147410
Fax listing confirmed attendees and questions for an Environmental Protection committee hearing.
23 shared non-person entities · 1 shared topics · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000143952
Joint announcement of a comprehensive plan by the EPA and city partners to address indoor air quality concerns in residential units south of Canal Street.
23 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.974
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.974
machine-extracted · confidence unavailable · Check page ↗15 shared non-person entities · 1 shared topics · similarity 0.971
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000153497
Draft excerpts from an EPA Office of Inspector General report reviewing the World Trade Center indoor environmental response.
15 shared non-person entities · 1 shared topics · similarity 0.969
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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NYC-WTC_000144631
Legal directive instructing staff to preserve original World Trade Center documents as evidence.
Filed in the same folder
NYC-WTC_000144632
Correspondence from the NYC Council on the Environment including a legal notice to preserve World Trade Center documents.
Filed in the same folder
NYC-WTC_000144633
Report detailing silica sample results and OSHA limit exceedances during demolition activities at the World Trade Center parking garage.
Filed in the same folder
NYC-WTC_000144639
Memorandum from elected officials requesting agency attendance at a town hall meeting to address air and dust quality concerns.
Filed in the same folder
NYC-WTC_000144641
Cover sheet for a fax transmission from EPA Region 2 regarding World Trade Center environmental matters.
Filed in the same folder