WTC OSHA Asbestos Sampling Data for A1

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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 Street 1 Personal 0.024
9/15 Warren to Park & West to Church 1 Personal 0.0049
9/15 Warren to Park & West to Church 1 Personal 0.013
9/16 World Financial Center from Vesey to Chambers 1 Personal 0.009


DATE Location Sample Type Fibers /cc TEM fibers/cc
9/18 NE corner PS89 Area 0.012 none
9/20 SW corner of West & Chambers Front of PS89 Area 0.005  
9/21 Light post in N corner PS 89 Area <0.003