OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document ___
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City of New York Department of Design and Construction
MEMORANDUM
From Robert C. Adams, CIH, CSP Director EHSS
To: Michael Burton Executive Deputy Commissioner
RE: Stuyvesant High School Air Sampling Results
Two ambient air samples for asbestos were collected between the hours of 4 PM and 12 PM on 10/13/01 outside Stuyvesant High School. The samples were analyzed using transmission electron microscopy (TEM), which provides results that are specific for the presence of asbestos fibers. Using this method, the EPA guideline for acceptable concentrations is 70 structures per square miUimeter (s/mm^). The results obtained for this round of sanpling were as follows:
LOCATION ________________________ Airborne Concentration (s/mmj Pier 25/ Outside north exit of school_______ ND <16.67 ________ Pier 25/Noithwest of Stuyvesant High School ND <16.67 ND = not detected
The laboratory chain of custody sheet(s) are attached.
Please contact Robert Adams if there are any questions.
cc: Calvin Drayton, NYC OEM, fax# 212-245-0666
CITY_21MC100_010395393
NYC-WTC_000208852
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NYC-WTC_000182376
Memorandum reporting transmission electron microscopy results for ambient air samples collected outside a school on October 13, 2001.
4 shared non-person entities · 1 shared topics · similarity 0.997
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NYC-WTC_000182376
Memorandum reporting transmission electron microscopy results for ambient air samples collected outside a school on October 13, 2001.
Similarity score 0.999 (not a probability)
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NYC-WTC_000182376
Memorandum reporting transmission electron microscopy results for ambient air samples collected outside a school on October 13, 2001.
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