Draft WTC Air Analysis Results, Feb 11, 2002

NYC 9/11 Public Portal Document

NO QC EVALUATION HAS BEEN PERFORMED, DATA VALIDITV IS UNSUBSTANTIATED ■' Y-' AND THE DATA SHOULD BE USED WITH DISCRETION WTC TEDLAR BAG AIR ANALYSIS, TO-15 MODIFIED METHOD DRAFT GC/MS Results for 02/11/02

File Name_____ NYC1023 NYC1024 NYC1025 NYC1026 NYC1028 NYC1027 Sample Location Instrument Blank Tedlar Bag Blank Washing Tent Austin Tobin Plaza North Tower South Tower Ambient Air Plume Sample Number A07457 A07458 A0746O A07459 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 I 20 20 20 20 20 Sample Cone. Units PPbv ppU ppb. Ppbv Ppbv PPP» Propylene RL RL RL RL RL RL Chlorodifluoromethare RL RL RL RL RL RL Dichlorodifluoromethane RL RL RL RL RL RL - Dichlorotetrafluoroethane RL RL RL RL RL RL Chloromethane RL RL RL RL RL RL Vinyl Chloride RL RL RL RL RL RL 1,3-Butadiene 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 RL Isopropyl Alcohol RL RL RL RL RL 38 Acetone RL RL RL RL RL 40 Trichlorotrifluoroethane RL RL RL RL RL RL ' 1,1-Oichloroethene RL RL RL RL RL RLi 3-Chloropropene RL RL .RL RL RL RL Methylene Chloride RL RL RL RL RL rl! ■ MTBE RL RL RL RL RL RL trans-1,2-Dichtoroe1hene 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 2-Butanone RL RL RL RL RL RL cis-1,2-Dichloroethene RL- RL RL RL RL RL Ethyl Acetate__________ RL RL RL RL RL RL Chloroform RL RL RL RL RL RL Tetrahydrofuran RL RL RL RL RL RL • 1,1,1 -Trichloroethane RL RL RL RL RL RL Cyclohexane __ RL RL RL RL Carbon Tetrachloride RL RL RL RL RL RL 1,2-Dichloroelhane RL RL RL RL RL RL Benzene RL RL RL RL RL RL 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-Dloxane RL RL RL RL RL RL . Methyl Isobutyl Ketone RL RL RL RL RL RL cis-1,3-Dichloropropene RL RL RL RL RL RL Toluene RL RL RL RL RL RL trans-1,3-Dichloropropene RL RL RL RL -BL— 1,1,2-Trichloroethane RL RL RL RL RL- 2-Hexanone RL RL RL RL RL Tetrachloroethene RL RL RL RL RL RL Dibromochloromethane RL RL RL RL RL RL 1,2-Dibromoethane RL RL RL RL RL RL Chlorobenzene RL RL RL RL RL RL Ethylbenzene RL RL RL RL RL RL m&p-Xylenes RL RL RL RL RL 0-Xylene_____________ RL . RL RL RL RL RL Styrene______________ RL RL RL RL RL RL Bromoform RL RL RL RL RL RL 1,1,2,2-Tetraohloroethane RL RL RL RL RL RL 4-Ethyltoluen0 RL RL RL RL RL RL 1,3,5-Trlmethylbenzene ■ RL RL RL RL RL RL 1,2,4-Trimethylbenzene rl’ RL RL RL 1,3-Dichlorobenzene RL RL RL RL RL 1,4-Dichlorobenzene ■ RL RL RL RL RL RL Benzyl Chloride________ —BL. RL RL RL RL 1,2-Dlchlorobenzene . RL RL RL RL RL 1,2,4-Trichlorobenzene RL RL RL RL RL RL Hexachloro-1,3-Butadiene RL RL RL RL RL RL

CITY_21MC1OO_OO2961846

NYC-WTC_000186595