NYC-WTC_000195194

NYC 9/11 Public Portal Document

wwBBiii lillllllllii illlM ■■■all ■■III Table ZO Air Sampling Equipment*^ WB ■ 2 liliiliill lllil Analyte Sample Fl^ Sample Media Pump

Asbestos 0.45 pm and 0.8pm (25 10 480 min Gilian* None er (TEM and PCM) mm) MCEF cassette L/min, Air Con-2

MMVF 0:45 pm and O.Spih (25 10 480 min. Gilian® None mra) MCEF L/min Air Gon-2 ^cassette,::;’-/;;..; <■

AJpha-quartz, 5 pm (37 mm) 2,5 480 min. SKC Model Aluminum Calcite, Gypsum PVC cassette L/min, 224-PCXR8 cyclone IIIIM needed O;8|mi(37mm) 10 480 min. Gilian* None; MCEF cassette L/rriin, Air Gdn-2

PAH-s 2 pm (37 ram) 480 min. Gilian® PTFE filter followed by L/min, Air Con-2 illlil I I50mg,8x liO,XAD-2 i sorbent tube Dioxins/Furans 32 mm quartz filter 15 56 hour Gilian® One ifbiidwed by polyurethane L/min. Air Con-2 foam (PUF)

3.6 Sample Analysis and Management

Laboratories Utilized and Analyses Performed Inorganic analyses, which included MMVF, alpha-quartz, calcite, gypsum, lead, total dust, pH and total particulates not otherwise specified (NIOSH 0500) were performed by EMSL Laboratories (EMSL), at the corporate headquarters located at 107 Haddon Avenue, Westmont, NJ. The analyses for asbestos using PCM, PLM, and TEM were performed by EMSL Laboratories, 307 West 38th St., New York, NY. Organic analyses were provided by Paradigm Analytical, 2627 North Chase Parkway SE, Wilmington, NC. These analyses included PAH and Dioxins/Furans.

^^Pump flow rates were measured before and after sample collection. Pumps were calibrated before each «r use and the flow rate was confirmed following the sample period. A primary dry cell calibrator (BIOS DC-Lite) was used to establish the flow rates of the SKC personal sampling pumps. A Gilibrator-2 High Flow Wet Cell Calibrator was used to establish the flow rates of the AirCon-2 high volume air samplers. Calibrating for alpha­ quartz, calcite, gypsum and dioxins/furans also required separate flow chambers. Flow rates were recorded on Air Sampling Data Sheets.

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NYC-WTC_000195227