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NYC-WTC_000208757

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000208757–000208766
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NYC 9/11 Public Portal Document

Liberty Mutual / ATC Measurment Data for 3/4/02 to 3/8/02

Shift Job Adj. % Shift Sample ID Zone Description Begin Time End Time Worker Respirator Analyte Results OEL OEL % OEL Adj PEL Breaking Concrete W/Jack Hammer 6WTC 3/1/2002 3/1/2002 0.30 mg/ou WTC-TU-MK-S-020301-03 TU Level B3 7:31:00 AM 3:30:00 PM Jorge Suivado Yes Quartz m 0.05 0.024 608.00% 1262.50% Breaking Concrete W/Jack Hammer 6WTC 3/1/2002 3/1/2002 Respirable WTC-TU-MK-S-020301-03 TU Level B3 7:31:00 AM 3:30:00 PM Jorge Suivado Yes Dust 1.8 mg/cu m 3 3 59.43% 59.46% Grappler Operator East 3/2/2002 3/2/2002 Sebastian <0.0H WTC-TU-MK-S-020302-04 TU Slurry Wall 7:45:00 AM 3:40:00 PM Santoro Yes Cristobalite mg/cu m 0.05 0.024 Grappler Operator East 3/2/2002 3/2/2002 Sebastian <0.011 WTC-TU-MK-S-020302-04 TU Slurry Wall 7:45:00 AM 3;40:OOPM Santoro Yes Quartz mg/cu m 0.05 0.024 Grappler Operator East 3/2/2002 3/2/2002 Sebastian Respirable 0.060 mg/cu WTC-TU-MK-S-020302-04 TU Slurry Wall 7:45:00 AM 3:40:00 PM Santoro Yes Dust m 3 3 2.00% 2.00% Banker Trust 3/5/2002 3/5/2002 Hydrogen WTC-TU-PP-H-020305-02 TU Bldg in the Pit 8:12:00 AM 3:18:00 PM Sulfide <0.059 ppm 10 10 Banker Trust 3/5/2002 3/5/2002 WTC-TU-PP-H-020305-02 TU Bldg in the Pit 8:12:00 AM 3:18:00 PM Sulfur Dioxide <0.012 ppm 2 2

spotter, cleaning debris WTC 6 2/27/2002 2/27/2002 <0.012 WTC-TU-PP-S-020227-D2 TU Lvi B1 7:46:00 AM 3:02:00 PM Efraim Portillo yes Cristobalite mg/ou m 0.05 0.024

spotter, Gleaning debris WTC 6 2/27/2002 2/27/2002 0.028 mg/cu T WTC-TU-PP-S-020227-02 TU ....... LvI B1 7:46:00 AM 3:.02:0OPM Efrairr Portillo yes Quartz m 0.05 0.024 56.00% 116.67%

spotter, cleaning debris WTC 6 2/27/2002 2/27/2002 Respirable 0.33 mg/cu WTC-TU-PP-S-020227-02 .TU .7.. ,.Lwl,B1... . ,7:46:00.AM. .r3:02:flQ.PM EfraimPortillo yes.. . ;,4,TBu8L:\i / i rfr/T/T, 3 3 10,95% 10.95% torch cutter on 3/4/2002 3/4/2002 <0.0094 WTC-TU-PP-2-020304-02 TU surface 7:56:00,AM 3:10:00,PM John Montalvo yes Ozone ppm 0.08 0.08 Jack Hammering 6WTC NE 3/2/2002 3/2/2002 Carlos <0.011 ro WTC-TU-RF-S-020302-02 TU Section 7:53:00 AM 3:44:00 PM Escobar Yes Cristobalite mg/ou m 0.05 0.024

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NYC-WTC_000208763

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NYC-WTC_000208763Source: NYC Law Department, mirrored locally

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Air sampling data log for WTC site recording worker exposure to quartz and other analytes from late April through early May 2002.

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