Air sample lab report, Broadway and 31st St, Oct 2001

NYC 9/11 Public Portal Document

10/25/2001 lb:14 6314676905 PEDNEAULT ASSOCIATES PAGE 03

[ Prepared .Exclusively Por: PEDNEAULTASSOCIATES, IJVC. NYCDEP-Emergenc^/ Response & Tech Assmt. 1615 ff/NTHAVEHUS. 80X201, 3OffEMIA. /JX 117J6 96-05 Horace Harding Expressway LAB#: 01100428 Corona NY 11368 PROJECT H) WORLD TRADE CENTER- 5 Boro Sampling (718) 595-4650 MATRIX: AIR\GAS I I 1,1.2-Tricriloroethane ND ppb v/v 0.0896 USEPATO-15 10.23/01 Toluene 3.82 ppb v/v 0.0735 USEPATO-15 10,23/01 1.2-Dibromoethane ND ppb v/v 0.0971 USEPATO-15 10,23/01 Tetrachloroettione 0.22 ppb v/v 0.0845 USEPATO-15 10,23/01 Chlorobenzene ND ppb v/v 0.1343 USEPATO-15 10,23/01 Ethylbenzene 0.56 ppb v/v 0.0744 USEPATO-15 10/23/01 m,p-Xylene 1.84 ppb v/v 0.1785 USEPATO-15 10/23/01 Styrene 0.12 ppb v/v 0.0896 USEPA TO-15 10/23/01 1,1,2.2-Tetrachloroetbane ND ppb v/v 0.1471 USEPA TO-15 10/23/01 0-Xylene 0.67 ppb v/v 0.0111 USEPATO-15 10/23/01 1,3.5-Trimathylben2erie 0.20 ppb v/v 0.0757 USEPATO-15 10/23/01 1,2.4-T rimethylbenzer e 0.62 ppb v/v 0.1511 USEPATO-15 10/23/01 1.3-Dichlorobenzene ND ppb v/v 0,1564 USEPATO-15 1023/01 1,4-Dichlorobenzen0 ND ppb v/v 0.16S USEPA TO-15 1023/01 1.2-Dichloroben2ene ND ppb v/v 0.2014 USEPA TO-15 10/23/01 1 ^.^-TricWorobenzene ND ppb v/v 0.1785 USEPATO-15 10/23/01 Hexachloro-1,3-Butadiene ND ppb V/v 0.1976 USEPATO-15 10/23/01 Tentatively Identified Compounds USEPATO-15 10/23/01 (E)-2-Butenal 1.58 ppb v/v USEPA TO-15 10/23/01 isobutane 1.18 ppb v/v USEPA TO-15 1023/01 Butane 1.29 ppb v/v USEPATO-15 10/23/01 2-Metbyl butane 1.70 ppb v/v USEPATO-15 10/23/01

John Pednoault Pago 2 of 16 ND=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 NR=NON REPORTABLE RESULTS M'/VBE #46075

CITY_21MC100_011107382

NYC-WTC_000182437