8 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗Document / 1 page
NYC-WTC_000214984
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000214984Page image
OCR text
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
104 East 25th St
3^ New York, New York 10010 www.atc-enviro.com 212.353.8280 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. 150M 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 4, 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. One (1) sample was collected indoors and two were 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 were the Main entrance lobby, the Plaza and the Roof by the air intake.
Mercury (Hg) was detected in these samples at levels that were indistinguishable from that detected in the blank.
The established regulatory value for mercury (O.lmgZm^) is intended for industrial workplace exposures and is not generally applicable to office/school settings. There are no standards or guidelines for mercury vapor in indoor air in non-industrial situations.
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, CSP Regional Manager, Industrial Hygiene Division
Attachment
CITY_21MC100_01 1064044
NYC-WTC_000214984
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000214984Source: NYC Law Department, mirrored locally
Related records
Browse subjects →Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
Same-box 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 0.991
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 0.983
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.983
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.981
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 0.981
machine-extracted · confidence unavailable · Check page ↗8 shared non-person entities · 1 shared topics · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175582
Letter report detailing mercury vapor sampling conducted on February 22, 2002, at the referenced school.
5 shared non-person entities · 1 shared topics · similarity 0.977
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175674
Laboratory report from ATC Associates detailing air sampling results for mercury vapor conducted at a NYC school in March 2002.
5 shared non-person entities · 1 shared topics · similarity 0.976
machine-extracted · confidence unavailable · Check page ↗Filed elsewhere
No available related records indexed in this group.
More like this page
Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
Similarity score 0.996 (not a probability)
machine-extracted · confidence unavailable · Check page ↗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 0.996 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.995 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.995 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.994 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000178018
Letter reporting mercury vapor sampling results collected at P.S. 150M in June 2002.
Similarity score 0.994 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Others also read
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.
Similar indexed content
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