NYC-WTC_000209302

NYC 9/11 Public Portal Document

NO QC EVALUATION HAS BEEN PERFORMED, DATA VALIDITY IS UNSUBSTANTIATED » AND THE DATA SHOULD BE USED WITH DISCRETION WTC TEDLAR BAG AIR ANALYSIS, TO-15 MODIFIED METHOD DRAFT GC/MS Results for 05/01/02

File Name NYC1684 NYC1685 NYC1686 NYC1687 NYC1689 NYC1688 Sample Location Instrument Blank TedlarBaq Blank Washing Tent Austin Tobin Plaza North Tower South Tower Ambient Air Sample Number A07787 A07788 A07789 AO7790 Sample Height Breathing Level Breathing Level Ground Level Ground Level Sample Volume 250 mL 250 mL 250 mL 250 mL 250 mL Reporting Limit (RL) 20 20 20 20 20 20 Sample Cone. Units "PPOT PPbv TW7 PPb» ■pr®7 Ppbv

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CITY_21MC100_002857824

NYC-WTC_000209302