9 shared non-person entities · 1 shared topics · similarity 0.991
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000208125
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000208125–000208126
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan April 4,2002 Air Sampling for Silica Page 2 P.S. 150M ATC Project No. 15-19125-0289
The results of the sampling represent conditions found on the date the samples were collected.
RESULTS
Samples were obtained inside the Lobby Main entrance, multipurpose room near the kitchen. Classroom 502 and Classroom 503.
Silica was detected in two of the four samples: • Sample ATC-0318-150M-S1, collected in the Main Lobby contained 0.0235 milligrams per cubic meter of air (mg/m^); • Sample ATC-0318-150M-S2, collected in the Multipurpose Room contained 0.0363 mg/m’.
There is on-going construction activity at Independence Plaza where the school is located and this may be the source of the silica detected in these samples.
It is our pleasure to provide these indoor air consultative 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 370.
Sincerely, ATC ASSOCIATES INC.
James R. Cohn, CIH, CSP Regional Manager Industrial Hygiene Division
Attachments
CITY_21MC100_003020159
NYC-WTC_000208126
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