10 shared non-person entities · 1 shared topics · similarity 0.996
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NYC-WTC_000189285
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NYC 9/11 Public Portal Document
Mr Bernard P Orlan Apnl5 2002 Wipe Samples for Dioxins Page 2 H S for Leadership & Public Service (894M) ATCProiectNo 15 19125 0290
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 analytical laboratory report is attached
DIOXIN WIPE SAMPLE RESULTS (2, 3, 7, 8 TCDD EQUIVALENTS) March 1, 2002
Mam Lobby Floor /DX1 0 0014 5th Floor Elevator Lobby Floor /DX2 0 0UU64 10th Floor Elevator Lobby Floor /DX3 0 (Jl)
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 0014 nanograms per square meter (ng/m2) The 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 TC ASSOCL4 TES INC
James R Cohn CIH CSP Regional Manager Industrial Hygiene Division
Attachment
CITY_21MC100_003085189
NYC-WTC_000189286
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NYC-WTC_000189286Source: NYC Law Department, mirrored locally
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