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WTC air analysis results, January 8, 2002

Machine-extracted title · confidence 95%

Draft GC/MS laboratory report for WTC Tedlar bag air samples collected on January 8, 2002.

NYC-WTC_000186684
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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 01/08/02 Tentatively Identified Compounds

File Name NYC708 NYC709 NYC710 Sample Location Instrument Blank Tedlar Bag Blank Washing Tent Sample Number A07321 Sample Height Breathing Level Volume 250 mL 250 mL None None None

File Name NYC711 NYC713 NYC712 Sample Location Austin Tobin Plaza North Tower South Tower Sample Number A07324 A07322 A07323 Sample Height Breathing Level Ground Level Ground Level Volume 250 mL__________ 20 mL 250 mL_________________________ None Propylethylene 1900 ppb„ 3-MethyIh6xane 23 ppbv 2-Pentene 260 ppb. Octamethyl-Cyclotetrasiloxane 27 ppbv Unknown 920 ppby Isoprene 630 ppb^ Cyclopentadiene 1600 ppbv Cyclopentene 510 ppb„ 1-Hexene 1700 ppb„ 2-Methylfuran 1200 ppbv Unknown 290 ppbv Unknown 830 ppbv Unknown 1400 ppby o I—I 2-Pentanone 370 ppbv K Unknown 280 ppbv I Unknown 430 ppbv ! Unknown 860 ppbv oi o Octane 310 ppbv I o Cyclopentanone 320 ppby o 2-Phenylpropene 330 ppbv

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NYC-WTC_000186684

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NYC-WTC_000186684Source: NYC Law Department, mirrored locally

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