WTC OSHA Asbestos Sampling Data for B1

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Permisissible Exposure Limit (PEL): 0.1 fiber/cubic centimeter as an 8-hr time weighted average.
Excursion Limit: 1 fiber/cubic centimeter over a 30-minute period.


DATE Location # of Samples Sample Type Fibers /cc
9/14 Greenwich & Barclay St. 1 Personal 0.024
9/15 Warren to Park and between West & Church 1 Personal 0.0049
9/15 Warren to Park and between West & Church 1 Personal 0.013
9/15 Broadway & Leonard to Liberty 1 Personal 0.0045


DATE Location Sample
Type
Fibers/cc TEM
fibers/cc
9/18 Church & Thomas to Broadway & Cortland Personal 0.031 none