Report from ATC Associates detailing polychlorinated dibenzo-p-dioxin and dibenzofuran wipe sample analysis conducted at a New York City school.
NYC-WTC_000175545–000175546
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Mr Bernard P Orlan November 25, 2002 Wipe Samples for Dioxins Page 2 P S 124 Manhattan ATCProiectNo 15-19125-0350
Each sample was analyzed for sixteen (16) PCDD/PCDF isomers The results for each isomer were then converted to 2, 3, 7, 8 tetrachloro-dibenzo-p-dioxm (2, 3, 7, 8-TCDD) equivalents by multiplying by an established equivalency factor. This provides a single value (m nanograms) for the analytical results for each sample A copy of the laboratory analysis report is attached The results are shown in the following table
DIOXIN WIPE SAMPLE RESULTS 2, 3, 7, 8 TCDD EQUIVALENTS - Nanograms per square meter (ng/m^) September 12, 2002 LOCATION /SAMPLE ID DIOXIN CONCENTRATION
Lobby-Mam Entrance / DX-1 0 00
2nd Floor Hallway by Room 222 / 0 000035 DX-2 3rd Floor Hallway by Room 307 / 0 00 ____________ DX-3____________ Blank/DX-4 0 00
The New York State Department of Health (NYSDOH) established guidelines for dioxin for the re-occupancy of the Binghamton State Office Building following a PCB fire The NYSDOH guideline for dioxin on surfaces is 25 nanograms per square meter (25 ng/m^)
The concentrations on indoor surfaces ranged from 0 00 to 0 000035 nanograms per square meter (ng/m^) The levels found m all of these samples are below the NYSDOH guideline of 25 ng/m2
It IS not possible to determine when the 2, 3, 7, 8 - TCDD equivalents detected m these samples was deposited Dioxin samples were not collected from these locations prior to these samples therefore a background sample is not available for comparison purposes.
It is our pleasure to provide these indoor environmental services to the NYC Department of Education If you have any questions about this report, please call (212) 353-8280, extension 212
Sincerely, ATC Associates, Inc.
James R Cohn, CIH, CSP Regional Manager Industnal Hygiene Division
Attachment
CONFIDENTIAL, CITY_21MC100_003431535 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175546
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NYC-WTC_000175533
Report from ATC Associates detailing polychlorinated dibenzo-p-dioxin and dibenzofuran wipe sample analysis conducted at a New York City school.
10 shared non-person entities · 1 shared topics · similarity 0.999
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175495
Report from ATC Associates Inc detailing results of wipe samples for dioxins and dibenzofurans collected at a New York City Department of Education school.
10 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.998
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175474
Environmental health report detailing analytical results for polychlorinated dibenzo-p-dioxins and furans from wipe samples collected in August.
9 shared non-person entities · 1 shared topics · similarity 0.994
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000179461
Laboratory report from ATC Associates detailing wipe sample results for dioxins and furans collected at a school building in February 2002.
10 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175250
Memo reporting results of wipe samples for polychlorinated dibenzo-p-dioxins and dibenzofurans collected at P.S. 124M on September 12, 2002.
10 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 ↗10 shared non-person entities · 1 shared topics · similarity 0.993
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NYC-WTC_000175533
Report from ATC Associates detailing polychlorinated dibenzo-p-dioxin and dibenzofuran wipe sample analysis conducted at a New York City school.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175495
Report from ATC Associates Inc detailing results of wipe samples for dioxins and dibenzofurans collected at a New York City Department of Education school.
Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.997 (not a probability)
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NYC-WTC_000175533
Report from ATC Associates detailing polychlorinated dibenzo-p-dioxin and dibenzofuran wipe sample analysis conducted at a New York City school.
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