Air sample lab report, World Trade Center, Oct 2001

NYC 9/11 Public Portal Document 63'..'1&76905 PEDNEfiULT ftSSOCIATES PAGE 10 10/30/2001 16:5E

I Prepart’d Exclusively For: PEDNEAULTASSOdATES, I^C. NYCDEP-Emergency Respon se & Tech Assrat. l615NJI^AVEfJU£, BOXSnS. KY. 11716

96-05 Horace Harding Expressway LAB NUMBER: 01100507 Corona , NY 11368 PROJECT ID : WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MR. M, FAWZY, DIRECTOR D.ATE RECEIVED release date REPORT DATE 10/27/01 10/30/01 10/30/01 COLLECT DATE: SAMPLE MATRIX: SAMPLE ORIGIN:

01100507-007 A1R\GAS BERRY & N 11th STZDUPUCATE 10/27/01 7:35 PM PARAMETER METHOD RESULT UNITS Aluminum (Al) OSHAID 121/125G <0.01 rng/m3 Antimony (Sb) OSHAID 121/125G <0.01 mg/m3 Arsenic (As) OSHAID 121/125G <0.01 mg/m3 Barium (Ba) OSHAID 121/125G <0.01 mg/m3 Beryllium (Be) OSHAID 121/125G <0.01 mg/m3 Cadmium (Cd) OSHA ID 121/125G <0.01 mg/m3 Calcium (Ca) OSHAID 121/125G <0.01 mg/m3 Chromium (Cr) OSHA ID 121/i^G <0.01 rr,g/m3 Copper (Cu) OSHA ID121/125G <0.01 n-g/m3 Iron (Fe) OSHA ID 121/125G <0.01 rrig/m3 Lead (Pb) OSHA ID 121/125G <0.01 m0/m3 Magnesium (Mg) OSHA ID 121/125G 0.03 mg/m3 Manganese (Mnj OSHAID121/125G <0.01 mg/m3 Mercury (Hg) OSHA ID 121/246.5 <0.01 mg/mS Nickel (Ni) OSHAID 121/125G <0.01 mg/mS Potassium (K) OSHA ID 121/125G <0.01 mg/m3 Selenium (Se) OSHA ID 121/125G <0.01 mg/mS Silver (Ag) OSHAID 121/125G <0.01 mg/m3 Sodium (Na) OSHA ID 121/125G <0.01 mp/m3 Thallium (Tl) OSHA ID 121/125G <0.01 rruj/mS Zinc (Zn) OSHAID 121/125G <0.01 mg/m3

John Pedneeult Page 7 of 8 Lab Director NYS ELAf’#10224 Reported results are reflective of TOTAL, Metals @ 2L per min/15 min run. MWBE #46075

CITY_21MC100_011107474

NYC-WTC_000182458