5 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗Document / 1 page
NYC-WTC_000234667
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000234667Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Centers for Disease Control and Prevention National Institute for Occupational Safety and Health Interim Air Sampling Report Saturday, September 22, 2001
Investigators from the National Institute for Occupational Safety and Health (NIOSH) collected air samples in areas immediately adjacent to the debris pile and on personnel actively involved in rescue efforts in the vicinity of the debris pile to characterize potential exposures. Below are the interim sampling results for Saturday, September 22, 2001.
Air Samples
Total Dust • 4 area air samples were collected for total dust o Area sample 8-hour time-weighted average concentrations were below 1.0 mg/m’
Respirable Dust • 2 area air samples were collected for respirable dust o Area sample 8-hour time-weighted average concentrations were below 0.05 mg/m’
Metals • 4 area air samples were collected for metals o Nothing of concern was found regarding metal analysis
Crystalline silica • 2 area air samples were collected for crystalline silica o No crystalline silica was detected on either of the air samples
Carbon Monoxide • 7 real-time personal breathing zone samples were collected for carbon monoxide o All 8-hour time-weighted average concentrations were below 20 ppm o A single peak of 1239 ppm was observed on a torch cutter
Mercury • 11 personal and 2 area air samples were collected for mercury o No mercury was detected on any of the air samples
CITY_21MC100_003280819
NYC-WTC_000234667
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000234667Source: NYC Law Department, mirrored locally
Related records
Browse subjects →Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
Same-box records
5 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗Filed elsewhere
5 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗3 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.978
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.976
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.
Similarity score 0.991 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.991 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Others also read
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.
Similar indexed content
Similar indexed content
Similar indexed content
Similar indexed content
Similar indexed content