13 shared non-person entities · 1 shared topics · similarity 0.990
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NYC-WTC_000194860
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000194860–000194861Page image
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OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Mr. Bernard P. Orlan March 26, 2002 Air Sampling for Metals Page 2 P. S. 150 (Manhattan) ATC Project No. 15-19125-0298
The Environmental Protection Agency (EPA) has set a screening level for hexavalent chromium in air of 0.6 ug/m^ this assumes a continuous exposure for one year. The samples here were analyzed for total chromium (trivalent and hexavalent).
The other metals were not present above the limits of detection for the analytical method.
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
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CITY_21MC100_0 04152345
NYC-WTC_000194861
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NYC-WTC_000194861Source: NYC Law Department, mirrored locally
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