12 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗Document / 2 pages
PCDD/PCDF wipe sample results, PS234M, April 2002
Machine-extracted title · confidence 95%Letter transmitting analytical results for PCDDs and PCDFs from wipe samples collected at PS234M on March 1, 2002.
NYC-WTC_000177787–000177788Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan April 5, 2002 Wipe Samples for Dioxins Page 2 P. S. 234 /Manhattan) ATC Proiect No. 15-1912.S-0279
multiplying by an established equivalency factor. This provides a single value (in nanograms) for the analytical results for each sample. The sample locations and the results are shown in the table: DIOXIN WIPE SAMPLE RESULTS (2, 3, 7, 8 TCDD EQUIVALENTS) March 1, 2002 DIOXIN CONCENTR.\T1ON „ LOCATION/SAMPLJE NUMBER (ng/m2)
1 st Floor Hallway - east end/DXl 0.00051
1 st Floor Hallway - west end/DX2 0.0067
The concentrations on indoor surfaces were 0.00051 and 0.0067 ng m^. These levels are well below the NYSDOH guideline.
It is not possible to determine when the 2, 3, 7, 8 - TCDD equivalents detected in these samples were deposited. Dioxin wipe samples were not collected from this school prior to December 6, 2001.
It IS our pleasure to provide these indoor environmental services to the NYC Board of Education. If you have any questions about this report, please call (212) 353-8280, extension 212.
Sincerely, A TC ASSOCJA TES INC.
James R. Cohn, CIH, CSP Regional Manager, Industrial Hygiene Division
Attachment
CONFIDENTIAL, CITY_21MC100_0 03444421 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177788
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000177788Source: 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
12 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗13 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000177779
Letter transmitting analytical results for PCDDs and PCDFs from wipe samples collected at PS234M in March 2002.
12 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗12 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗Filed elsewhere
No available related records indexed in this group.
More like this page
Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.996 (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 ↗NYC-WTC_000177794
Cover letter and results for wipe samples testing polychlorinated dibenzo-p-dioxins and dibenzofurans collected at PS 234M on February 14, 2002.
Similarity score 0.990 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.989 (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