Industrial hygiene air monitoring results, NYC Education Dept, Sep 2001

NYC 9/11 Public Portal Document Hug itu Uc; ua: i ba HbC to i u - ar; i - atoto / F . 1 J

ENVIRONMENTAL TESTING INDUSTRIAL HYGIENE PSC •EPA4MAP101262-0 • NY DOrtWElAC 10803 • NJ DEP PA02C • AIHA ACCREDITATION NO. 100438 • PA OEP 05-353 • CT DPH PH-0238 •NC DENR599 Analytical Results for ATC Associates WorkOrder: R02080731 Client Reference; 19125-0346

Concentration Limit of Test Date Analyzed Analyte Detection Method /Analyst (ug) I (nig/m^) ; (ppm) (ug)

Lab ID: -02A Date Sampled: 8/22/02 Matrix: Charcoal AirVol.(L); 120 Client ID: ATC-0822-131M-VOC2 <0.17 <0.031 20 OSHA7 08/26/2002 JLS 1,1,1-Trichloroethane <20 <0.17 <0.041 20 OSHA7 08/26/2002 JLS 1,2-Dichloro8thane <20 <0.047 20 OSHA 7 08/26/2002 JLS A Hydrocarbons. Total <20 <0.17 <20 <0.17 <0.070 20 OSHA 7 08/26/2002 JLS Acetone <0.17 <0.044 20 OSHA7 08/26/2002 JLS B Hydrocarbons, Total <20 <20 <0.17 <0.052 20 OSHA7 08/26/2002 JLS Benzene <20 <0.17 <0.036 20 OSHA7 08/26/2002 JLS Chlorobenzene <0.17 <0.034 20 OSHA 7 08/26/2002 JLS Chloroform <20 <20 <0.17 <0.038 20 OSHA 7 08/26/2002 JLS Ethylbenzene <20 <0.17 <0.047 20 OSHA 7 03/26/2002 JLS Hexane <0.17 <0.034 20 OSHA 7 08/26/2002 JLS Isopropylbenzene <20 <20 <0.17 <0.048 20 OSHA 7 08/26/2002 JLS Methylene Chloride <20 <0.17 <0.056 20 OSHA 7 08/26/2002 JLS Pentane <20 <0.17 <0.039 20 OSHA 7 08/26/2002 JLS Styrene <20 <0.17 <0.025 20 OSHA 7 08/26/2002 JLS T etrachloroethene <20 <0.17 <0.044 20 OSHA 7 03/26/2002 JLS Toluene Trichloroelhene <20 <0.17 <0.031 20 ■ OSHA 7 08/26/2002 JLS

<20 <0.17 <0.038 20 OSHA 7 08/26/2002 JLS Xylenes, Total

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CONFIDENTIAL, CITY_21MC100_003430898 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

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