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Air sampling report for mercury vapor, March 2002
Machine-extracted title · confidence 95%Laboratory report from ATC Associates detailing air sampling results for mercury vapor conducted at a NYC school in March 2002.
NYC-WTC_000175674–000175675Page 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.Gom 212.353.8.280 Fax 212.353.8306 ASSOCIATES INC.
March 29, 2002
Mr. Bernard P. Orlan Director, Environmental Health and Safety New York City Board of Education 28-11 Queens Plaza North Long Island City, NY 11101
Re: Air Sampling for Mercury Vapor Stuyresant High School ATC Project No. 15-19125-0246
Dear Mr. Orlan:
ATC Associates, Inc. (ATC) is pleased to provide this report of air sampling for mercury vapor conducted on March 13, 2002, at the referenced school. The New York City Board of Education (BOE) requested this sampling at the recommendation of H. A. Bader, a consultant to the parents’ association.
Scope of Work
ATC collected three (3) samples for mercuiy vapor using Carulite® (Hydrar) tubes connected to battery-poweied sampling pumps calibrated to collect 0.2 liters of air per minute. Two samples were collected indoors and one was collected on the roof. The samples were sent to PSC Analytical Services, Inc., an American Industrial Hygiene Association-accredited laboratory in Reading, PA. One blank tube was also submitted. Analysis was performed by means of a mercuiy anah'zer according to NIOSH Method 6009. A copy of the analytical report is attached.
Tenzin Namg/al and Wagdi Abdelshahid, Industrial Hygienists from ATC’s New York City office, conducted the sampling. Sampling was conducted in accordance with accepted industrial hygiene practices. The results represent the conditions on the day the samples were collected.
Results
Mercury (Hg) was found at a trace level in samples and also in the blank. The following table presents the mercury data by sample location.
CONFIDENTIAL, CITY_21MC100_003432310 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175674
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NYC-WTC_000175674Source: NYC Law Department, mirrored locally
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