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   WTC OSHA Asbestos Sampling Data for Northwest Area

Please Note:
Sample results reflect total fibers and may contain fibers other than asbestos.
The asbestos permissible exposure limit (PEL) is 0.1 f/cc (fibers/cubic centimeter of air).

Date Task/Operation Sample Type Duration (min.) Fibers/cc PCM
Total Fiber Count		 Fibers/cc OSHAPCM
Obvious non-asbestos fibers excluded
05/28/02   Area 450 0.004 0.000
05/28/02   Area 440 0.000 0.000
05/28/02   Area 448 0.006 0.000
05/28/02   Area 440 0.005 0.000
05/28/02   Area 420 0.004 0.000
05/28/02   Area 445 0.003 0.000
04/20/02   Area 435 0.033 0.000
04/20/02   Area 435 0.000 0.000
04/20/02   Area 425 0.007 0.000
04/20/02   Personal 420 0.030 0.000
04/19/02   Area 397 0.004 0.000
04/19/02   Area 410 0.006 0.000
04/19/02   Area 423 0.006 0.000
04/19/02   Personal 412 0.004 0.000
04/19/02   Area 424 0.008 0.000
04/07/02   Personal 450 0.045 0.000
04/07/02   Personal 450 0.013 0.000
04/06/02 AREA SAMPLE  Area 406 0.009 0.000
04/06/02 AREA SAMPLE  Area 380 0.028 0.000
04/04/02 NY FIRE DEPARTMENT  Personal 255 0.041 0.000
04/04/02 NY FIRE DEPARTMENT  Personal 205 0.050 0.000
04/04/02   Personal 402 0.150 0.000
04/04/02   Personal 388 0.058 0.000
03/27/02   Personal 414 0.000 0.000
03/27/02   Area 363 0.000 0.000
03/27/02   Personal 402 0.000 0.000
03/27/02   Area 367 0.000 0.000
03/26/02   Personal 450 0.000 0.000
03/26/02   Personal 450 0.000 0.000
03/23/02   Personal 475 0.060 0.000
03/23/02   Area 465 0.007 0.000
03/23/02   Area 305 0.012 0.000
03/23/02   Area 460 0.003 0.000
03/23/02   Personal 440 0.021 0.000
03/20/02   Personal 417 0.028 0.000
03/20/02   Personal 417 0.045 0.000
03/20/02   Personal 417 0.046 0.000
03/20/02   Personal 417 0.074 0.000
03/20/02   Personal 417 0.092 0.000
03/17/02   Personal 182 0.008 0.000
03/17/02   Personal 198 0.009 0.000
03/17/02   Area 205 0.008 0.000
03/17/02   Area 210 0.021 0.000
03/09/02 DOCKBUILDER  Personal 205 0.000 0.000
03/09/02 DOCKBUILDER  Personal 235 0.017 0.000
03/09/02 DRILLER  Personal 188 0.000 0.000
03/09/02 DRILLER  Personal 265 0.025 0.000
03/08/02 BURNER  Personal 210 0.000 0.000
03/08/02 BURNER  Personal 245 0.021 0.000
03/08/02 BURNER  Personal 255 0.018 0.000
03/08/02 BURNER  Personal 210 0.051 0.000
02/26/02   Personal 300 0.000 0.000
02/26/02   Personal 180 0.043 0.000
02/26/02   Personal 300 0.019 0.000
02/26/02   Personal 180 0.038 0.000
02/26/02   Area 300 0.008 0.000
02/26/02   Area 180 0.016 0.000
02/26/02   Area 300 0.004 0.000
02/26/02   Area 180 0.017 0.000
02/24/02   Area 130 0.016 0.000
02/24/02   Area 280 0.025 0.000
02/24/02   Area 131 0.000 0.000
02/24/02   Area 254 0.005 0.000
02/24/02   Area 251 0.033 0.000
02/24/02   Area 131 0.100 0.000
02/23/02 EXCAVATOR  Personal 221 0.042 0.000
02/23/02 AREA SAMPLE  Area 170 0.018 0.000
02/23/02 AREA SAMPLE  Area 170 0.019 0.000
02/19/02   Area 420 0.017 0.000
02/19/02   Area 420 0.010 0.000
02/19/02   Area 430 0.007 0.000
02/19/02   Area 430 0.005 0.000
01/29/02 IRONWORKER-BURNER/CUTTER  Personal 420 0.033 0.000
01/26/02   Area 480 0.002 0.000
12/28/01 AREA SAMPLE  Area 125 0.000 0.000
12/28/01 AREA SAMPLE  Area 259 0.017 0.000
12/02/01   Area 178 0.025 0.000
12/02/01   Area 185 0.110 0.000
12/02/01 EXCAVATOR OPERATOR/OPERATING ENGINEER  Personal 169 0.330 0.000
12/02/01 EXCAVATOR OPERATOR/OPERATING ENGINEER  Personal 190 0.480 0.000
12/02/01 EXCAVATOR OPERATOR/OPERATING ENGINEER  Personal 165 0.100 0.000
12/02/01 EXCAVATOR OPERATOR/OPERATING ENGINEER  Personal 192 0.150 0.000
12/02/01 EXCAVATOR OPERATOR/OPERATING ENGINEER  Personal 182 0.023 0.000
12/02/01 EXCAVATOR OPERATOR/OPERATING ENGINEER  Personal 182 0.031 0.000
10/26/01 BOBCAT OPERATOR  Personal 406 0.220 0.009
10/26/01 AREA ON CEMENT SUPPORTING BLDG 5  Area 402 0.000 0.000
10/23/01   Area 285 0.046 0.000
10/23/01 FRONT END LOADER  Area 270 0.091 0.000
10/21/01 GRAPPLER OPERATOR, WEST BROADWAY & BARCLAY.  Personal 292 0.037 0.000
10/21/01 GRAPPLER ENGINEER  Personal 264 0.020 0.000
10/21/01 GRAPPLER OPERATOR WEST BROADWAY AND BARCLAY  Personal 310 0.057 0.000
10/21/01 GRAPPLER OPERATING ENGINEER/MOVING DEBRIS.  Personal 195 0.053 0.000
10/21/01 GRAPPLER OPERATOR, LOADING DEBRIS IN TRUCKS.  Personal 310 0.046 0.000
10/19/01 BOBCAT OPERATOR, NORTH SIDE CLEARING OF DEBRIS.  Personal 112 0.022 0.000
10/19/01 BOBCAT OPERATOR, NORTH SIDE CLEARING OF DEBRIS.  Personal 274 0.045 0.000
10/17/01   Area 282 0.007 0.000
10/17/01   Area 185 0.051 0.000
10/17/01   Area 175 0.062 0.000
10/16/01   Area 122 0.024 0.000
10/16/01   Area 99 0.042 0.000
10/16/01 OSHA PERSONNEL  Personal 118 0.027 0.000
10/16/01 OSHA PERSONNEL  Personal 182 0.052 0.000
10/16/01   Area 120 0.011 0.000
10/16/01   Area 103 0.028 0.000
10/16/01   Area 109 0.043 0.000
10/14/01 OSHA PERSONNEL  Personal 390 0.000 0.000
10/14/01 OSHA PERSONNEL  Personal 395 0.012 0.000
10/14/01 SAFETY CONSULTANT  Personal 370 0.021 0.000
10/14/01   Area 105 0.000 0.000
10/14/01   Area 225 0.032 0.000
10/11/01   Area 186 0.077 0.000
10/11/01   Area 136 0.096 0.000
10/10/01 LABORER  Personal 220 0.034 0.000
10/10/01 GENERAL LABORER  Personal 182 0.012 0.000
10/10/01 GENERAL LABORER  Personal 211 0.024 0.000
10/10/01 GRAPPLER/CLAW OPERATOR/OPERATING ENGINEER  Personal 198 0.047 0.000
10/10/01 GRAPPLER/CLAW OPERATOR/OPERATING ENGINEER  Personal 239 0.070 0.000
10/07/01 EXCAVATOR OPERATOR/OPERATING ENGINEER  Personal 210 0.066 0.000
10/06/01   Area 165 0.026 0.000
10/06/01   Area 100 0.050 0.000
10/05/01 WASH STATION ATTENDANT  Personal 140 0.034 0.000
10/05/01 WASH STATION ATTENDANT  Personal 245 0.110 0.000
10/05/01   Area 351 0.008 0.000
10/05/01   Area 335 0.091 0.028
10/04/01 OPERATOR  Personal 280 0.026 0.000
10/02/01 CSHO  Personal 345 0.010 0.000
10/02/01 LABOR/CUTTER  Personal 355 0.010 0.000
10/02/01 CRANE OPERATOR  Personal 345 0.039 0.000
09/30/01 OPERATING ENGINEER  Personal 220 0.087 0.007
 
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