Draft GC/MS air analysis results, WTC site, Dec 16 2001

NYC 9/11 Public Portal Document ■V.

• ' - 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 12/16/01

File Name NYC467 NYC468 NYC469 NYC470 NYC471 ■ NYC474 Sample Location Instrument Blank Tedlar Bag Blank Washing Tent Austin Tobin Plaza North Tower South Tower.'.. . Ambient Air Plume Plume Y ” Sample Number_______ AO7227 A07228 A07229 A07230 ’•> ■ 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 PPb, ppb» ppb. ppb. PPPv ppbv . . Propylene RL RL RL RL 250 ‘ 85 Chlorodifluoromethane —BL. RL RL RL RL - .-' RL Dichlorodifluoromethane RL RL RL RL RL RL Y Dichlorotetrafluoroethane —BL. RL RL ■ RL RL - RL Chloromethane RL RL RL RL 240 RL Vinyl Chloride_________ —BL- RL RL RL RL • RL . . - 1,3-Buladiene RL RL RL RL RL RL Bromomethane RL ___ RL RL RL RL RL Chloroethane RL RL RL RL RL RL . - Trichlorofluoromethane RL RL RL RL RL 28 Isopropyl Alcohol RL RL RL RL RL ' RL Acetone RL RL RL RL 940 37 Trichlorotrifluoroethane RL RL RL RL RL RL 1,1-Dichloroethene RL RL RL RL RL RL 3-Chloro propene RL RL RL RL RL RL Methylene Chloride . RL RL RL RL RL - 54 MTBE RL RL RL RL RL I 30 trans-1,2-Oichloroethene RL RL RL RL RL RL Hexane RL RL RL RL RL RL 1,1-Dichloroethane RL RL RL RL RL RL • Vinyl Acetate RL RL RL RL RL RL i 2-Butanone___________ RL RL RL RL 71 RL l^is-1,2-OichlDroethene RL RL RL RL RL RL \ Ethyl Acetate_________ —BL. RL RL RL RL RL ' RL . Chloroform RL RL RL RL RL Tetrahydrofuran RL RL RL RL 24 RL 1,1.1-Trichloroethane RL RL RL RL RL 24 Cyclohexane RL RL RL RL RL RL Carbon Tetrachloride RL RL RL RL RL RL 1.2-Oichloroethane RL RL RL RL RL RL Benzene RL RL RL RL 600 28 Heptane RL RL RL RL RL RL Trichloroethene' RL RL RL RL RL RL . 1,2-Dichloropropane RL RL RL RL RL RL 1,4-Dioxane RL RL RL RL RL ■ RL Methyl Isobutyi Ketone RL RL RL RL 24 RL cis-1,3-Dichloropropene RL RL _5L -5k- RL Toluene RL RL RL -RL 140 71 trans-1,3-Dichlorapropene 1.1.2-Trichloroethane —BL. RL RL RL RL —Bk- RL RL RL RL RL RL 2-Hexanone Tetrachloroethene -BL. RL —BL RL RL RL ——B!^—- RL RL RL RL ——Bk —_ Dibromochloromelhane RL RL RL RL RL RL 1,2-Dibromoethane Chlorobenzene -BL. RL ——BL j5k. — RL. —RL RL RL RL RL 21 ——Bk—_ Ethylbenzene RL RL RL RL 97 RL ■ m&p-Xylenes RL RL RL RL RL 140 0-Xylene RL RL RL RL- RL 63 Styrene RL RL RL Bromoform RL RL RL —BL. 24 RL _ RL RL RL 1,1,2,2-Tetrachloroethane RL RL RL RL RL ||4-Ethylloluene RL —RL. RL RL RL RL RL Kxs^methylbenzene RL RL RL RL RL I T ,2,4-Trimethylbenzene —RL. 1,3-Oichlorobenzene RL _—BL RL —BL. RL —— 1,4-Dichlorobenzene RL RL ——BL RL RL RL RL RL —BL- -Bk— RL Benzyl Chloride RL ——BL 1,2-Dichlorobenzene RL _RL_ -Bk— ——BL_ 1,2,4-Trichlorobenzene RL L—BL RL —RL RL ——Bt ——_ Hexachloro-1,3-Butadiene RL RL ——BL RL RL RL —RL RL RL RL RL RL

CITY_21MC100_002962021

NYC-WTC_000186612