NYC-WTC_000195380

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 CT) HUMIDITY LEVELS (RH%) Y?;.- Standard = Standard = Standard = Standard = Standard = Standard= 68-74T 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. Sechon 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 0 74.7 42.6% 476 1.0 ND 67.5 3'‘‘ Fl. Section A 75.6 41.2% 525 ;o.9 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__________ 0.9 ND 63.1 7"' Fl. Section O 76.1 41.9% 482 1.0 ND 65.0 7*'' Fl. Section A 76.3 41.5% 475 0.9 ND 6^ 7"'Fl. Section N 76.9 40.4% ________ 513__________ 0.9 ND o 7'^ Fl. Section Z 74.7 42.9% 502 0.9 ND 68.1 H ' YY? ■■■

K I "F = degrees Fahrenheit CO = Carbon monoxide CO2 = Carbon dioxide PPM = Parts Per Million I—i s RH = Relative humidity ND = Non Detected o o o Io o co co (-O STS I co <75

NYC-WTC_000195381