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PCDD/PCDF wipe sample results, June 7, 2002
Machine-extracted title · confidence 95%Laboratory report providing results for polychlorinated dibenzo-p-dioxins and dibenzofurans from school wipe samples.
NYC-WTC_000175644–000175645Page image
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NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan June 7, 2002 Wipe Samples tor Dioxins Page 2 H. S. for Leadership & Public Service t894M) ATC Project No. 15-19125-0290
Tills provides a single value (in nanograms) for the analytical results for each sample. The sample location.s and the results are shown in the table.
DIOXIN WIPE SAMPLE RESULTS (2, 3, 7, 8 TCDD EQUIVALENTS) May 3, 2002
1st Floor Main Lobby - Floor /DXl 0.000032 5tn Floor Hallway by Elevator - Floor 0.000040 ______________ /DX2______________ IQth Floor Hallway by Elevator - Floor 0.000031 /DX3
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 0.000031 to 0.000040 nanograms per square meter (ng/m^). Thie levels found in 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 in these samples were deposited. Dioxin samples were not collected from these locations prior to January 2, 2002.
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 ASSOCIA TES INC.
el J^vAl Senior Project Mar.ager
Attachment
CONFIDENTIAL, CITy_21MC100_003432100 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175645
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NYC-WTC_000175645Source: NYC Law Department, mirrored locally
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