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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/^ Air Sampling Data For 04/05/02 to 04/12/02

WTC Recovery Project

Begin Shift Adj. ’/(.Shift Adj Sample 10 Zone Job Description Time End Time Worker Respirator Analyte Results oeU OEL’^ % oel’ OEL*- WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 0.000076 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Manganese mg/cu m 0.2 0.134 0.04% 0.06% WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 0.0021 mg/cu 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Magnesium m 10 6.7 0.02% 0.03% WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 0.00022 mg/cu 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Zinc m 5 3.4 0.00% 0.01% WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 0.00018 mg/cu 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Titanium m 10 10 0.00% 0.00%

WTC-BO-MA-M- flagger ©Church & ‘inr2002 4/6/2002 2:50:00 <0.0027 mg/cu 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Aluminum m 5 5

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.0032 mg/cu 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Antimony m 0.5 0.024

WTC-8O-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.00068 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Arsenic mg/cu m 0.01 0.0048

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.000028 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Cadmium mg/cu m 0.002 0.001

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.00047 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Chromium mg/cu m 0.5 0.024

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.00032 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Cobalt mg/cu m 0.02 0.01

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.000078 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Copper mg/cu m 0.2 0.134

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.00028 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Lead mg/cu m 0.05 0.024

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.00014 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Nickel mg/cu m 1.5 0.72

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.0025 mg/cu 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Selenium m 0.2 0.134 O H WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.0025 mg/cu 020407-04 BO Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Thallium m 0.1 0.048

WTC-BO-MA-M- flagger @ Church & 4/7/2002 4/8/2002 2:50:00 <0.0028 mg/cu s 020407-04 80 Liberty St. 7:40:00 PM AM Ismael Mendez 1/2 NPR Tin m 2 0.96 O

§ ' OEL=Occupational Exposure Limit, the lower of the OSHA PEL or ACGIH TLV. ! Shift Adj. OEL=OEL lowered when appropriate to reflect 12 hour x 7 day a week shifts. ’ When the result is not quantifiable a % OEL is not calculated. Page 11 to

NYC-WTC_000186569

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NYC-WTC_000186569Source: NYC Law Department, mirrored locally

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