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NYC-WTC_000205297

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NYC 9/11 Public Portal Document

Mr. Bernard P. Orlan October 3, 2002 Wipe Samples for Dioxins Page 2 P. S. 89 (Manhattan) ATC Project No. 15-19125-0297

The sample locations and the results are shown in the table:

DIOXIN WIPE SAMPLE RESULTS (2, 3, 7,8 TCDD EQUIVALENTS) August 20, 2002

__ ________ I DIOXIN KK __ ■liolBiil#. 1 I st Floor Hallway-north/DXl 0.000059 1st Floor Hallway-south/DX2 0.00096 2ttd Floor Hallway-south/DX3 0.00032

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^).

Tire concentrations on indoor surfaces ranged from 0.000059 to 0.00096 nanograms per square meter (ng/m^) for all readings. The dioxin concentrations in all of these sample are 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 samples were not collected from these locations prior to December 20, 2001.

It is our pleasure to provide these indoor environmental services to the DOE. If you have any questions about this report, please call (212) 353-8280, extension 212.

Sincerely, ATC ASSOCIA TJES INC.

James R. Cohn, CIH,CSP Regional Manager Industrial Hygiene Division

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CITY_21MC100_009261696

NYC-WTC_000205298

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NYC-WTC_000205298Source: NYC Law Department, mirrored locally

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