10 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗Document / 2 pages
NYC-WTC_000196517
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000196517–000196518Page image
OCR text
OCR status: ok · source: pdftotext
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 ASSOCIATES INC.
March 19, 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 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 vapor conducted on February 26, 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.
Scope of Work
ATC collected four (4) 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 Yen (10) hours. Two (2) samples were collected indoors and two (2) 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.
Tenzin Namgyal 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 days the samples were collected.
The sampling locations were: Main Entrance Lobby, 1** Floor Hallway, West Playground and the Roof.
Results
Mercury (Hg) was detected in these samples at levels that were indistinguishable from that detected in the blank.
The established regulatory value for mercury (OSHA: O.lmg/m^) is intended for industrial workplace exposures and is not generally applicable to office/school settings. There are no standards for mercury in indoor air in non-industrial situations. The EPA has no standard or guideline for mercury vapor in ambient air.
CITY_21MC100_003057268
NYC-WTC_000196517
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000196517Source: 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
10 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000178018
Letter reporting mercury vapor sampling results collected at P.S. 150M in June 2002.
9 shared non-person entities · 1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.992
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.
7 shared non-person entities · 1 shared topics · similarity 0.990
machine-extracted · confidence unavailable · Check page ↗7 shared non-person entities · 1 shared topics · similarity 0.989
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_000175273
Memo reporting results of air sampling for mercury vapor conducted at P.S. 131M on August 22, 2002.
7 shared non-person entities · 1 shared topics · similarity 0.983
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.
8 shared non-person entities · 1 shared topics · similarity 0.983
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · similarity 0.983
machine-extracted · confidence unavailable · Check page ↗9 shared non-person entities · 1 shared topics · similarity 0.982
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 1.000 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.999 (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 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.995 (not a probability)
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.
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 ↗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
Similar indexed content
NYC-WTC_000178018
Letter reporting mercury vapor sampling results collected at P.S. 150M in June 2002.
Similar indexed content
Similar indexed content
Similar indexed content