Draft GC/MS results for VOCs, WTC site, Dec 7 2001

NYC 9/11 Public Portal Document

NO QC EVALUATION HAS BEEN PERFORMED, DATA VALIDITY IS UNSUBSTANTIATED AND THE DATA SHOULD BE USED WITH DISCRETION

DRAFT GC/MS Results for 12/07/01 i Tentatively Identified Compounds

File Name NYC380 NYC381 NYC382 Sample Location Instrument Blank Tedlar Bag Blank Washing Tent Sample Number A07191 Sample Height Breathing Level Volume 250 mL 250 mL None None Phenol 21 ppbv

File Name NYC383 NYC385 NYC384 Sample Location Austin Tobin Plaza North Tower_________________ South Tower Sample Number A07193 A07192 A07194 Sample Height Breathing Level Ground Level Ground Level I Volume 250 mL 100 mL 250 mL None Pentane 340 ppb„ 1-Butanol 84 ppbv Furan 110 ppb„ Unknown 130 pph, 2-Methyl-2-pentene 180 ppb„ 2-Methylfuran 350 ppb„ Unknown 100ppb„ Methyl Cyclopentene Isomer 160 ppb, 2,5-Dimethylfuran 240 ppb„ 4-Methylheptane 97 ppb„ Unknown 110 ppb^ 2-Ethyl-1-Hexene 110 ppb^ Undecane ISOppbv 3-Ethyl-4-Methyl-1-Pentene 220 ppb, Unknown 96 ppb„ o Unknown 120ppbv Unknown 230ppb„ Unknown 160ppb„ Unknown llOppby ' f*' S o Isopropylbenzene 1300 ppb;------ o Propylbenzene 190 ppb^ o Io alpha-Methylstyrene 260 ppbv o ISO Unknown 110 ppbv cn CSO o . . '.V. on

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