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NYC-WTC_000234853

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000234853–000234857
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NYC 9/11 Public Portal Document

TECHNICAL REPORT

Indoor Air Quality Survey Bureau of Appraisals Division of Real Estate Services 1 Centre Street, 13* Fl South

Table 1

February 14, 2001

Location Carbon Dioxide Carbon Monoxide Temperature Relative Humidity (ppm) (ppm) (°F) (%) Room 1300 525-550 0-1 74-75 23-24

ppm= parts per million °F = Degrees Fahrenheit

Table 1 May 3/May 9, 2001

File room Office area Total Dust < 0.02 mg/m’ < 0.02 mg/nT NIOSH method 0500 Fiberglass < 0.008 <0.02 Fibers/cc NIOSH method 7400 Fibers/cc

OSHA PEL for Total dust = 15 mg/m3 NIOSH REL for Fiberglass = 3 fibers/cc mg/m ’ milligram per cubic meter cc cubic centimeter

Air samples were analyzed by Free-Col Laboratories (see attached Lab report).

4

CITY_21MC100_006267838

NYC-WTC_000234856

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NYC-WTC_000234856Source: NYC Law Department, mirrored locally

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