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NYC-WTC_000194735
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NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan May 22, 2002 Wipe Samples for Dioxins Page 2 P. S. 89 (Manhattan) ATC Project No. 15-19125-0297
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)
April 18, 2002
LOCA 1st Floor Hallway-north/DXl 1st Floor Hallway-south/DX2 0.0010 2nd Floor Hallway-south/DX3 0.000033
April 25, 2002
1st Floor Hallway-north/DXl 1st Floor Hallway-south/DX2 0.00040 2nd Floor Hallway-south/DX3 ra0025
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“).
On 4/18/02, the concentrations on indoor surfaces ranged from 0.000033 to 0.0010 nanograms per square meter (ng/m^). On 4/25/02, the concentrations on indoor surfaces ranged from 0.000025 to 0.00040 nanograms per square meter (ng/m^). 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 NYC Board of Education. If you have any questions about this report, please call (212) 353-8280, extension 212.
Sincerely, yi TCASSOCJA TES INC. Reviewed By:
James R. Cohn, CIH, CSP t Manager Regional Manager Industrial Hygiene Division
Attachment
CITY_21MC100_003096851
NYC-WTC_000194736
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NYC-WTC_000194736Source: NYC Law Department, mirrored locally
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ATC Associates report on dioxin wipe samples collected at P.S. 89M on May 2 and 9, 2002.
12 shared non-person entities · 1 shared topics · similarity 0.999
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