NYC-WTC_000195370

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 VOC'S TOTAL DUST (“F) HUMIDITY LEVELS (RH%)

Standard = Standard = Standard = Standard = Standard = Standard= 68-74'17 30-50% 1,000 PPM 9.0 PPM Varies per 15,000 ug/m^ specific parameter Lower Level MER Fresh Air 70.5 51.7% 387 1.4 ND 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'"'Fl. Office of Transport 75.1 42.1% 545 1.9 ND 63.9 2" Fl. Fiscal Operations 75.0 42.8% 504 1.9 ND 72.1 2" Fl. NYC Enpowerment Zone 74.8 42.8% 480 1.9 ND 65.5 3"' Fl. Section O 3"* Fl. Section A 74.7 42.6% 476 12 N^ 67.5 75.6 41.2% 525 21 ND 64.5 3"“ Fl. Section N 3^^ Fl. Section Y 78.5 37.6% 475 21 ND 67.3 76.3 40.4% _4« 0.9 ND 63.1 7*^ Fl. Section O 76.1 7“'Fl. Section A 41.9% 482 12 ND 65.0

7"’ Fl. Section N 76.3 41.5% 475 21 ND 66.4 76.9 40.4% 513 21 ND —121 o 7'" Fl. Section Z 74.7 42.9% 502 0.9 ND 68.1 H 1"^ L I o “F = degrees Fahrenheit CO = Carbon monoxide CO2 = Carbon dioxide PPM = Parts Per Million RH = Relative humidity ND = Non Detected o Io o I—i co STS'1 O

NYC-WTC_000195370