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NYC-WTC_000208035
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NYC 9/11 Public Portal Document
104 East 25th St., 10th Fl New York, New York 10010 www.atc-enviro.com 212.353.8230 Fax 2.12.353.8306 ASSOCIATES INC.
October 8, 2002
Mr. Bernard P. Orlan Director, Environmental Health & Safety New York City Department of Education 28-11 Queens Plaza North Long Island City, NY 11101
Re: Respirable Particulate Sampling High School of Economics and Finance (M833) ATC Project No. 15-19125-0291
Dear Mr. Orlan:
ATC Associates Inc. (ATC) is pleased to provide this report of respirable particulate sampling conducted on October 2-3, 2002, at the referenced school. The New York City Department of Education (DOE) requested this monitoring to verify that acceptable indoor air quality is being maintained.
SCOPE OF WORK
ATC conducted this evaluation to assess the concentration of respirable particulates (PM, 3) v/ithin the building.
One (1) sample for respirable particulates (PM, 5) was collected for twenty-four (24) hours using a Micro Environmental Monitor® (MEM®), manufactured by SKC, Inc. The sample was collected on a pre-weighed PVC filter supplied and analyzed by PSC Analytical Services, Inc., an American Industrial Hygiene Association-accredited laborator]/ in Reading, PA. A copy of the analytical laboratory report is attached.
Wagdi Abdelshahid, Industrial Hygienist of ATC’s New York City office, conducted the sampling consistent with generally accepted indoor air quality assessment practices. The result of the sampling represents conditions found on the date the sample was collected.
EVALUATION CRITERIA
Currently, there are no regulatory standards for indoor air quality in non-industrial buildings, such as offices and schools.
CITY_21MC100_003018554 NYC-WTC_000208035
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NYC-WTC_000208035Source: NYC Law Department, mirrored locally
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Letter and report detailing respirable particulate sampling conducted to assess indoor air quality.
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