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Asbestos air sampling data log, World Trade Center, Apr 2002

Machine-extracted title · confidence 95%

Data log of asbestos air sampling results collected at the World Trade Center site between April 4 and April 12, 2002.

NYC-WTC_000186563–000186575
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NYC 9/11 Public Portal Document

atc/^5sS- Air Sampling Data For 04/05/02 to 04/12/02 WTC Recovery Project

Begin Shin Adj. % Shin Adj Sample ID Zone Job Description Time End Time Worker Respirator Analyte Results oeU OEL^ % del’ OEL^ WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 0.00039 mg/cu 020406-03 90 dsp.'sssion center 7:50:00 AM PM Ai-ea ri'A im m 10 10 0.00% 0.00%

WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.0026 mg/cu 020406-03 BO depression center 7:50:00 AM PM Area N/A Aluminum m 5 5

WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.0032 mg/cu 020406-03 BO depression center 7:50:00 AM PM Area N/A Antimony m 0.5 0.024

WTC-BO-CJ-M- Area-tsp of ramp to 4/6/2002 4/6/2002 3:02:00 <0.00067 020406-03 BO depression center 7:50:00 AM PM Area N/A Arsenio mg/cu m 0.01 0.0048

WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.000027 020406-03 BO depression center 7:50:00 AM PM Area N/A Cadmium mg/cu m 0.002 0.001

WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.00047 020406-03 BO depression center 7:50:00 AM PM Area N/A Chromium mg/cu m 0.5 0.024

\WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.00032 020406-03 BO depression center 7:50:00 AM PM Area N/A Cobalt mg/cu m 0.02 0.01

WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.000076 020406-03 BO depression center 7:50:00 AM PM Area N/A Copper mg/cu m 0.2 0.134

WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.00027 020406-03 BO depression center 7:50:00 AM PM Area N/A Lead mg/cu m 0.05 0.024

WTC-BO-CJ-M- Area-top of ramp to 4/5/2002 4/6/2002 3:02:00 <0.00014 020406-03 BO depression center 7:50:00 AM PM Area N/A Nickel mg/cu m 1.5 0.72

WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.0025 mg/cu 020406-03 BO depression center 7:50:00 AM PM Area N/A Selenium m 0.2 0.134

WTC-BO-CJ-M- Area-top of tamp to 4/6/2002 4/6/2002 3:02:00 <0.0025 mg/cu 020406-03 BO depression center 7:50:00 AM PM Area N/A Thallium m 0.1 0.048

WTC-BOCJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.0027 mg/cu I 020406-03 BO depression center 7:50:00 AM PM Area N/A Tin m 2 0.95 O' WTC-BO-CJ-M- Area-top of ramp to 4/6/2002 4/6/2002 3:02:00 <0.00043 020406-03 BO depression center 7:50:00 AM PM Area N/A Vanadium mg/cu m 0.05 0.05 I WTC-BO-CJ-S- Area- middle section of 4/4/2002 4/4Z2002 9:00:00 020404-02 BO ramp top 1:30:00 PM PM Area N/A Respirable Dust 0.13 mg/cu m 3 3 4.18% 4.18% O O, O. I ! ’ OEL=Occupational Exposure Limit, the lower of the OSHA PEL or ACGIH TLV. O O 2 Shift Adj. OEL=OEL lowered when appropriate to reflect 12 hour x 7 day a week shifts. ^ Whan the result is not quantifiable a % OEL is not calculated. Pages

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NYC-WTC_000186566

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