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IAQ Report Cover Letter, 90 Trinity Place, Mar 2002
Machine-extracted title · confidence 95%Cover letter from ATC Associates to the NYC Board of Education submitting indoor air quality measurements for 90 Trinity Place in March 2002.
NYC-WTC_000180183–000180187Page image
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NYC 9/11 Public Portal Document
104 East 25th St., 10th Floor New York, New York 10010 www.atc-enviro.com 212.353.8280 Fax 212.353.8306 ASSOCIAI'ES INC.
March 27, 2002
Mr. Bernard P. Orlan Director, Environmental Health & Safety New York City Board of Education 28-11 Queens Plaza North Long Island Chy, NY 11101-4008
Re: Indoor Air Quality Assessment High School for Leadership & Public Service (M894) 90 Trinity Place New York. New York 10006 ATC Project No. 15-19125-0290
Dear Mr. Orlan:
ATC Associates Inc. (ATC) is pleased to provide this report of indoor air quality (lAQ) measurements collected on March 26, 2002, at the referenced school. The New York City Board of Education (BOE) requested these measurements as part of a program to determine if acceptable indoor air quality is being maintained,
SCOPE OF WORK
ATC conducted this evaluation to assess the basic parameters of temperature, relative humidity, carbon dioxide (CO2) and carbon monoxide (CO).
Total volatile organic compounds (TVOCs) and respirable particulates were also measured.
Mariana Medinets, Environmental Technician, of ATC’s New York City office, conducted the assessment, /tTC’s findings are based on a visual inspection, real-time environmental measurements and conditions present in the school at the time of the assessment.
ATC measured temperature, relative humidity, CO, and CO with a Q-Trak® Model 8551, manufactured by TSI, Inc,
ATC measured concentrations of respirable particulates (PM2,5) with a Dust-Trak® Aerosol Monitor Model 8520, manufactured by TSI, Inc.
ATC measured concentrations of TVOCs using a RAE Systems, Inc. MiniRAE® photoionization detector (PID).
The assessment was performed consistent with generally accepted indoor air quality assessment practices. As with all such assessments, there were inherent limitations created by constraints of time, operational and work practice variability, variations in indoor air quality parameters and sampling and analytical accuracy.
CONFIDENTIAL, CITY_21MC100_0 07741196 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000180183
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NYC-WTC_000180183Source: NYC Law Department, mirrored locally
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