OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
104 East 25th St New Yo’-k. New York 10010 w.ww.atc- enviro.com 212.353 3280 Fax 212.353.8306 ASSOCIATES INC.
February 11, 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 P. S. 234M ATC Project No. 15-19125-0279
Dear Mr. Orlan:
ATC Associates, Inc. (ATC) is pleased to provide this letter report of air sampling for mercury conducted on February 5, 2002, at the referenced school. The New York City Board of Education (BOE) requested this sampling at the recommendation of Environ Corp., a consultant to the parent’s association.
ATC collected three (3) samples for mercury vapor using Carulite® (Hydrar) tubes connected to battery-powered sampling pumps calibrated to collect 0.2 liters of air per minute. Samples were collected for ten (10) hours. Two (2) samples were collected indoors and one was collected outdoors. 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 mercury analyzer according to NIOSH Method 6009. A copy of the analytical report is attached.
The sampling locations, as specified by the parent’s association consultant, were;
1“‘ floor lobby, floor hallway, and the roof by the air intake.
Mercury (Hg) was not detected in these samples at levels that were distinguishable from that detected in the blank.
ATC appreciates the opportunity to provide this indoor air quality service to the BOE. Please call me at (212) 353-8280 extension 212 if you have any questions.
Sincerely, ATC Associates, Inc.
James R. Cohn, CIH, CS. Regional Manager, Industrial Hygiene Division
Attachment
CITY_21MC100_002879014
NYC-WTC_000218480
OCR can misread numbers and units. Confirm readings against the page image before using them.
Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000175977
Letter report detailing air sampling results for mercury vapor collected at P.S. 234M by ATC Associates for the New York City Board of Education.
8 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.985
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000178018
Letter reporting mercury vapor sampling results collected at P.S. 150M in June 2002.
8 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.980
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175370
Laboratory report detailing mercury vapor air sampling results conducted at P.S. 131M on August 22, 2002.
6 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.975
machine-extracted · confidence unavailable · Check page ↗No available related records indexed in this group.
Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000175977
Letter report detailing air sampling results for mercury vapor collected at P.S. 234M by ATC Associates for the New York City Board of Education.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.996 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.995 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
NYC-WTC_000175977
Letter report detailing air sampling results for mercury vapor collected at P.S. 234M by ATC Associates for the New York City Board of Education.
Similar indexed content
Similar indexed content
Similar indexed content
Similar indexed content
Similar indexed content