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Air sampling report for silica dust, Jan 2002
Machine-extracted title · confidence 95%Letter report from ATC Associates regarding air sampling for silica-containing dust at a NYC Board of Education school in January 2002.
NYC-WTC_000175068–000175069Page image
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NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan February 18, 2002 Air Sampling for Silica Page 2 Stuvvesant Hi ch School ATC Project No. 15-19125-0246
Silica was not detected in any of the other samples collected on this date.
The OSHA PEL is the only regulatory standard for silica exposure, however it is intended for occupational exposure in settings such as foundries, sandblasting, rock drilling, etc. The EPA does not have an ambient-air quality standard for silica.
ATC appreciates the opportunity to provide this indoor air quality consultative 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
CONFIDENTIAL, CITY_21MC100_003429697 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175069
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NYC-WTC_000175069Source: NYC Law Department, mirrored locally
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