Indoor Air Quality Report, March 1, 2002, NYC School

NYC 9/11 Public Portal Document

Mr. Bernard P. Orlan March 4, 2002 Indoor Air Quality Assessment Page 4 H.S. of Economics and Finance (M833) ATC Project No. 15-19125-0291

TVOC Concentration

TVOCs were not detected anywhere inside the building (0.0 ppm). The outdoor TVOC concentration was also 0.0 ppm.

OBSERVATIONS

During this assessment, ATC noted the following: • The interior of the building appeared clean and free of dust and debris; • The building was occupied at the time of the assessment; • No smoke odor was detected in the building;

FINDINGS

Based on the real-time measurements, the following findings are presented:

1. Concentrations of respirable particulates, CO2, TVOCs, and carbon monoxide were below applicable standards and guidelines. 2. One hundred twenty-three (123) measurements for relative humidity were below the ASHRAE-recommended range of 30 to 60 percent for occupant comfort. 3. Eighty-one (81) indoor temperature measurements were below the range of 68 to 75°F (at 50 percent relative humidity recommended by ASHRAE Standard 55-1992 during the heating season (wintertime conditions).

It is our pleasure to provide these indoor air quality services to the New York City Board of Education. If you have any questions about this report, please call (212) 353-8280, extension 336 or 212.

Sincerely, Reviewed by: /I TC ASSOCIA TES INC.

James R. Cohn, CIH, CSP Senior Project Manager Regional Manager Industrial Hygiene Division

Attachment

CONFIDENTIAL, CITY_21MC100_003461891 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000179971