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EPA Special Investigative Audit Report, WTC Site, Nov 2001
Machine-extracted title · confidence 95%Draft environmental data report for the World Trade Center site prepared by IT Corporation for the EPA in November 2001.
NYC-WTC_000186193–000186246Page image
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NYC 9/11 Public Portal Document
Polynuclear Aromatic Hydrocarbons (PAHs)
The NYC Response database contains results for many different individual PAH compounds. The database also contains a ‘PAH’ analyte which contains air sample results from various locations, all from September 16'*’. Those results are all ‘<‘ approximately 5 ppbv.
The Bulk Dust sample results for five (5) representative PAH compounds, including naphthalene, fluoranthene, pyrene, chrysene, and benzo(a)pyrene, representing increasing ring structures, are listed in Table 14. Figure 5 illustrates the concentration profile from the September 11* samples. The highest PAH concentration found was fluoranthene at 210,000 ppb in the October 8* Corlandt sample.
Table 14, PAHs in Bulk Dust Units: ug/Kg (ppb)
Lo««on ■■ Napthalene Fluoranthene jpyrtiie ChrysiJP Benzit^^ne Sept 11 Greenwich St & Warren St 2000 4100 3400 1400 1500 Hudson St Reade St 590 5400 3800 3400 3500 Murray St & West St 850 7700 6300 2600 2900 Warren St & West Broadway 1400 4100 3200 1600 1700
Sept 16 North End & Park Pl 1200 na 11000 5400 6100 Battery Pk & 2"'* Pl 1000 na 15000 7300 7900 Albany St & West St (WTC) 1500 na 12000 5700 6200 Park Pl & West Broadway nd na 630 nd nd Gets 22 Cortlandt 13000 210000 170000 68000 76000 600 Gateway Plaza 1700 20000 16000 7200 8500
‘na’ indicates that the results are not found in the NYC Response database. ‘nd’ indicates that the target compound was not detected.
There have been no PAH in bulk dust entries to the NYC Response database for samples taken since October 8 ". The three (3) sampling dates shown in Table 14 suggest an upward trend.
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