WTC OSHA Asbestos Sampling Data for C3

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Permissible 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 Fibers /cc
9-13 Hanover Square Area 2 0.003-0.004
9-13 Old Slip to Wall St. 1 0.003
9-15 Wall & S. William to Pearl & State Streets 4 <0.026-0.051
9-15 Broadway & Wall to S. William & Mill Lane 4 <0.026-0.035
9-15 Wall & Hanover to Fulton & FDR S. to Park Row & Frankfort 1 0.0032
9-16 Platt & Gold 1 0.004
9-16 Exchange Place & William St. 1 <0.003
9-16 Exchange Place & New St. 1 0.009


DATE Location # Samples Sample Type fibers /cc TEM fibers/cc
9-17 Broad & Exchange 1 Personal <0.036 none
9-18 West Broadway & Barclay to Church & William N/A Personal 0.041 none
9-20 Broadway & Pine to Nassau & Cedar, Broadway North to Liberty St. to Nassau & Maiden Lane N/A Personal <0.005 <0.005