OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan November 25, 2002 Wipe Samples for Dioxins Page 2 DeSoto School (P. S. 130 Manhattan! ATC Protect No, 15-19125-0343
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-dioxin (2, 3, 7. 8-TCDD) equivalents by multiplying by an established equivalency factor. This provides a single value (in nanograms) for the analytical results for each sample. A copy of the laboratory analysis report is attached. JEe results are shown in the following table.
DIOXIN WIPE SAMPLE RESULTS 2, 3, 7, 8 TCDD EQUIVALENTS - Nanograms per square meter (ng/m^) August 26, 2002 LOCATION /SAMPLE ID DIOXIN CONCENTRATION
Mam Lobby/DXl 0.00095
4th Floor Hall by Stair C / 0.00025 DX2 5th Floor Hal] by Stair E! / 0.00 DX3 Blank 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 0.00095 nanograms per square meter (ng/m2). The levels found in all of these samples are below the NYSDOII guideline of 25 ng/m2.
It is not possible to determine when the 2, 3, 7, 8 - TCDD equivalents detected in 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 Industrial Hygiene Division
Attachment
CITY_21MC100_003034218
NYC-WTC_000199461
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NYC-WTC_000175210
Report submitted to the NYC Department of Education regarding dioxin and dibenzofuran wipe sample results from DeSoto School in August 2002.
10 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175184
Report from ATC Associates detailing dioxin and dibenzofuran wipe sample results collected at PS 130 Manhattan in August 2002.
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
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175155
ATC Associates report on dioxin and dibenzofuran wipe samples collected at DeSoto School in August 2002.
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
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175135
Laboratory report detailing polychlorinated dibenzo-p-dioxins and dibenzofurans wipe sample analysis results for DeSoto School collected in August 2002.
10 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175113
Report detailing wipe sample results for polychlorinated dibenzo-p-dioxins and dibenzofurans collected at DeSoto School (P.S. 130) in August 2002.
10 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.997
machine-extracted · confidence unavailable · Check page ↗10 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 0.993
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.993
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175184
Report from ATC Associates detailing dioxin and dibenzofuran wipe sample results collected at PS 130 Manhattan in August 2002.
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 ↗NYC-WTC_000175155
ATC Associates report on dioxin and dibenzofuran wipe samples collected at DeSoto School in August 2002.
Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175135
Laboratory report detailing polychlorinated dibenzo-p-dioxins and dibenzofurans wipe sample analysis results for DeSoto School collected in August 2002.
Similarity score 0.998 (not a probability)
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Report submitted to the NYC Department of Education regarding dioxin and dibenzofuran wipe sample results from DeSoto School in August 2002.
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