NYC-WTC_000195376

NYC 9/11 Public Portal Document

INDOOR AIR QUALITY ANALYSIS

Project: Newmark & Co. Real Estate, Inc. CTSI Project #.-NY-442-01 Date: October 16, 2001 100 Gold Street

LOCATION TEMPERATURE RELATIVE CO2 (PPM) CO (PPM) TOTAL YOG'S TOTAL DUST (°F) HUMIDITY LEVELS (RH%)

Standard = Standard = Standard = Standard = Standard = Standard= 68-74“F 30-50% 1,000 PPM 9.0 PPM Varies per 15,000 iig/nr' specific parameter ■—=

Lower Level MER Fresh Air 70.5 51.7% 387 1.4 75.1 Chamber Lower Level-MER 79.9 38.7% 413 1.2 ND 59.4 Lower Level Engineers Ofc. 73.8 46.9% 457 1.4 ND 77.4 2"“ Fl. Section L 75.0 40.3% 558 0.9 ND 72.0 2""^. Office of Transport 75.1 42.1% 545 1.9 ND 63.9 2" Fl. Fiscal Operations 75.0 42.8% 504 12 221 2"' Fl. NYC Enpowerment Zone 74.8 42.8% 480 1.9 ND 65.5 3^*^ Fl. Section O 74.7 42.6% 476 12 ND 67.5 3''* Fl. Section A 75.6 41.2% 525 12 ND 64.5 3'^ Fl. Section N 78.5 37.6% 475 0.9 ND 67.3 3"* Fl. Section Y 76.3 40.4% 453 ND 7''' Fl. Section O 12 6^ 76.1 41.9% 482 1.0 ND 6^ ZZZZZ5ZLSection^A~ZZ 76.3 41.5% ND 12 111 7'" Fl. Section N 76.9 40.4% 513 12 ND 622 o 7‘" Fl. Section Z 74.7 42.9% 502 0.9 ND 68.1 H ==:= I "F = degrees Fahrenheit CO = Carbon monoxide CO, = Carbon dioxide PPM = Parts Per Million s o RH = Relative humidity ND = Non Detected o o I o

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NYC-WTC_000195376