NYC-WTC_000208778

NYC 9/11 Public Portal Document

i Liberty Mutual /ATC Industrial Hygiene Air Sample Results December s, 2001 I

OSHA PEL Station Sample Begin Begin Comment orAGGIH Action Type Sample ID Zone Job Description Date End Date Time' End Time Worker Analyte Results Units TLV Level

Metals Samples Personal 011134O-WTCBOFA03 BOVIS Grappler 11/28/2001 11/28/2001 8:19:00 AM 3:24:00 PM Andre Sukram Aluminum <0.0027 mg/cu m 5 2.6

Antimony <0.0032 mg/cu m 0.5 0.25

Arsenic <0.00068 mg/cu m 0.01 0.005

Beryllium <0.0000013 mg/cu m 0.002 0.001

Cadmium <0.000028 mg/cu m o.oos 0.0025

Calcium 0.012 mg/cu m 5 2.5

Chromium <0.00047 mg/cu m 0.5 0.25 Cobalt <0.00032 mg/cu m 0,05 0.0025

Copper O.O00091 mg/cu m 0,1 0;05

Iron 0.01 S mg/cu m 10 5

Lead <0.00028 mg/cu m - 0.05 0.03

Magnesium 0.0017 mg/cu m 15 7.5

Manganese 0.00018 mg/cu m 5 2:S

Nickel <0.00014 mg/cu m 1 0<5

Selenium <0-0025 mg/cu m 0.2 0.1

Thallium <0.0025 mg/cu m 0.1 O.OS

Tin <0.0028 mg/cu m 2 1

Titanium <0.000058 mg/cu m 15 7.5

Vanadium <0.00044 mg/cu m 0.1 0.05

Zinc 0.00076 mg/cu m 5 2.5

Personal 0111340-WTCBOFA04 BOWS Torchman 11/28/2001 11/28/2001 8:21:00 AM 3:34:00 PM Tony Almeda Aluminum <0.0026 mg/cu m 5 2,5

Antimony <0.0032 mg/cu m 0.6 0.25 n Arsenic <0.00067 mg/cu m 0.01 0.005 H ! Beryllium <0.0000012 mg/cu m 0.002 0.001 ro Cadmium <0.000027 mg/cu m O.OOS 0.0025

Q Calcium 0.0042 mg/cu m 5 2.5 o

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NYC-WTC_000208778