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NYC-WTC_000234299
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NYC 9/11 Public Portal Document
Centers for Disease Control and Prevention National Institute for Occupational Safety and Health Interim Air Sampling Report Thursday, October 4, 2001
New York City Department of Health contractors collected air samples on personnel actively involved in rescue efforts on or in the vicinity of the debris pile to characterize occupational exposures. These air samples were subsequently analyzed by the National Institute for Occupational Safety and Health (NIOSH). Below are the interim sampling results for Thursday, October 4, 2001.
Air Samples
Asbestos • 20 personal air samples were collected by N YDOH contractors (15 TWA, 5 STEL) o Personal sample 8-hour time-weighted average concentrations were below 0.026 fibers/cc as determined by PCM o All short-term exposure limit samples were below the limit of detection as determined by PCM
K.M. Wallingford 10/15/01
CITY_21MC100_003245378
NYC-WTC_000234299
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NYC-WTC_000234299Source: NYC Law Department, mirrored locally
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