WTC OSHA Asbestos Sampling Data for B3

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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 Broadway & Rector St. 1 Personal 0.015
9/14 Broadway to WTC 1 Personal 0.005
9/15 Wall to S. William to Pearl & State St. 4 Personal <0.026-0.051
9/15 Broadway & Wall to S. William & Mill Lane 4 Personal <0.026-0.035
9/15 Fulton & Broadway 3 Personal <0.024-0.069
9/15 Fulton & Broadway to Pine & Broadway 1 Personal 0.0048
9/15 Broadway & Leonard to Liberty St. 1 Personal 0.0045


DATE Location # of Samples Sample Type Fibers /cc TEM fibers/cc
9/17 Broadway & Rector to Trinity & Church 1 Personal <0.004 none
9/17 Liberty to Broadway 2 Personal 0.009-0.025 none
9/17 Rector & Broadway 1 Personal <0.012 none
9/17 Church & Vesey to Cedar & West to Liberty 1 Personal 0.015 none


DATE Location Sample Type Fibers/cc TEM fibers/cc
9/18 Broadway & Rector to Wall & Church Area 0.019 none
9/18 West & Vesey to Albany & Greenwich Personal 0.027 none
9/18 West & Vesey to Albany & Greenwich Personal 0.021 none
9/18 West Broadway & Barclay to Church to William Personal 0.041 none
9/18 Church & Thomas to Broadway & Cortland Personal 0.031 none
9/19 SE corner Thames & Trinity Area 0.017 <0.004
9/19 Church & Vesey to West Broadway & Barclay to Albany & Greenwich Personal 0.018 <0.004
9/19 West Broadway & Barclay to Church to Greenwich & Liberty to Albany & Cedar Personal 0.014 <0.004
9/19 Broadway & Barclay to Church to Greenwich & Liberty to Albany & Cedar Personal 0.014 <0.004
9/20 Liberty & Washington Liberty & West (debris pile) Personal 0.037 <0.005
9/20 Center to Liberty St Area 0.019 <0.012
9/20 Liberty between West & Church Personal 0.036 <0.004
9/20 Broadway & Pine to Nassau & Cedar to Broadway & N to Liberty St, Nassau to Maiden Lane Personal <0.005 <0.005
9/20 West St. & Albany to Albany to Liberty St. to Liberty St. & Washington Personal .024-.027 <0.006-0.010
9/20 West St. & Albany to Albany to Liberty St. to Liberty St. & Washington Personal .008-.035 <0.005
9/20 West St. & Albany to Albany to Liberty St. to Liberty St. & Washington Personal 0.012-0.027 <.004-<.008
9/21 Liberty & West to Church Personal 0.048 <0.005
9/21 Liberty & West to Church Personal 0.08 <0.004
9/21 North of Liberty & West Personal 0.007  
9/21 SW of Rubble Pile to Liberty & West Personal 0.032  
9/21 N of Liberty & West to 75ft from Pile Personal overloaded  
9/21 S of WTC tower & Bldg #4 Personal <0.006  
9/21 N of West & Liberty, Edge of Rubble Pile Area 0.059  
9/21 Rector & Broadway Area <0.005  
9/21 Broadway & Liberty Area <0.004  
9/21 W Cortland & Church Area 0.007 <.003
9/21 Church & Dey to East side of rubble pile Area <0.006  
9/23 Liberty St. Personal ND  


DATE [Sample#] Location/task Sample Type Duration (mins) Fibers/cc TEM (f/cc)
9/25 Church & Liberty, Operating Engineer (VOID) Personal 169 overloaded  
9/25 Church & Liberty, Laborer overseeing loading of truck (Hot Zone) Personal 260 0.099  
9/25 Church & Liberty (Hot Zone) Area 240 0.063  
9/26 Church & Liberty to WTC#4 on the pile, back hoe operator (Hot Zone) Personal 265 0.12 0.002