Letter and report detailing results of air sampling for polynuclear aromatic hydrocarbons at the school.
NYC-WTC_000177901–000177903
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan January 4, 2002 Air Sampling for PAHs Page 3 P. S. 234 (Manhattan) ATC Project No. 15-19125-0279
TABLE 2 PAHs DETECTED December 8,2001 Milligrams per cubic meter of air (mg/m^)
Cafeteria *BDL 0.00031 0.00039 PAH-1 Room 118 BDL BDL BDL PAH-2 fl. hallway BDL 0.0037 0.00021 PAH-3 Room 315 0.00024 0.00045 0.00040 PAH-4 Main Entrance BDL BDL 0.00028 PAH-5 Front courtyard BDL BDL BDL PAH-6 Playground BDL BDL 0.00024 PAH-7 Roof (intake) BDL BDL 0.00029 PAH-8 *BDL = Below Detection Limit
1-methylnaphthalene and 2-methylnaphthalene were detected indoors only, naphthalene was detected both indoors and outdoors at similar concentrations.
Naphthalene is an aromatic hydrocarbon used in the manufacture of plastics, dyes, resins and pesticides and the two methylated derivatives are found in some plastics and wood treatment chemicals. ATC has no specific information concerning possible sources of these PAHs in the school building.
It is our pleasure to provide these indoor environmental services to the New York City Board of Education. If you have any questions about this report, please call (212) 353-8280, extension 212 or 261.
Sincerely, 4 TC ASSOCIA TES INi
James R. Cohn, CIH, CSP Regional Manager, Industrial Hygiene Division
Attachments
CONFIDENTIAL, CITY_21MC100_003444873 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177903
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NYC-WTC_000179437
Laboratory report from ATC Associates detailing air sample results for polynuclear aromatic hydrocarbons collected at a school building.
8 shared non-person entities · 1 shared topics · similarity 0.984
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.941
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175275
ATC Associates report on air sampling for volatile hydrocarbon compounds at PS 131M conducted August 22, 2002.
4 shared non-person entities · 1 shared topics · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗7 shared non-person entities · 1 shared topics · similarity 0.940
machine-extracted · confidence unavailable · Check page ↗7 shared non-person entities · 1 shared topics · similarity 0.939
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machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.939
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Laboratory report from ATC Associates detailing air sample results for polynuclear aromatic hydrocarbons collected at a school building.
Similarity score 0.974 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000179437
Laboratory report from ATC Associates detailing air sample results for polynuclear aromatic hydrocarbons collected at a school building.
Similarity score 0.967 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000179437
Laboratory report from ATC Associates detailing air sample results for polynuclear aromatic hydrocarbons collected at a school building.
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Laboratory report from ATC Associates detailing air sample results for polynuclear aromatic hydrocarbons collected at a school building.
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