19 shared non-person entities · similarity 0.965
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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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OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Particulate Matter (PM 10 and PM 2.5) and Rain
The PM 10 and PM 2.5 data from two weeks of the month of October is presented in the following Table 17 and Figure 15. PM 10 daily results are available on the NYC Response database for five (5) sites from Lower Manhattan and Brooklyn (see Attachment 2, Figure 13) from October 2"'“ through October 15*. All of the sites show the same pattern of decreasing concentrations. PM 2.5 data is available for hourly samples for a much larger number of sites. In this comparison, daily average PM 2.5 data has been calculated for the Coast Guard Battery Park site.
Table 17. PM 10 and PM 2.5 PM 10 from Coast Guard Bldg (Site 3) and PM 2.5 from Coast Guard Battery Park (Rooftop); Units: ug/m3
Date". PM 10 PM-2.5 --T Rain < /
Oct 1 na na Rain
Oct 2 37.2 16.6 na
Oct 3 63.7 30.6 na
Oct 4 61.9 31.9 na
Gets 62.4 32.7 na
Oct 6 20.2 7.67 Rain
Oct? 12.4 4.73 na
Oct 8 19.1 6.34 na
Oct 9 29.2 10.4 na
Oct 10 34.2 12.4 na
Oct 11 33.6 13.3 na
Oct 12 43.6 16.7 na
Oct 13 43.8 20.5 na
Oct 14 25.5 12.2 na
Oct 15 24.0 7.91 na
Oct 16 na na Rain
Page 48 of 52
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