NYC-WTC_000210399

NYC 9/11 Public Portal Document

Ambient Group, Inc. o 10 Morris Avenue CD Glen Cove, NY 10865 cn I CD ELAP #10865 Metals In Air Laboratory Data Report cz m Client; Cushman & WaRefield/Mercantile Exchange CJ CD One North End Avenue i Cd ro New York, New York 102B2 3 Project ID#; 211338 Project Address: One North End Avenue □> z co Survey Date: 11/1/01 I——I m z Concentrations Reported in jig/m’ O Fbor/Localion 11th Ffoor\AdJacenlto 11SS Security Closet Cadmium Chromium 0.15 0.34 Copper 1.13 iron 9.95 Lead 1.13 Manganese Nickel 0.34 0.25 Silica 4.12 Zino 1.18 s 7th FloortAdJacent Stairwell_____________ 0.15 0.39 1.13 9.99 1.13 0.34 0.25 4.04 1.18 z CD 3rd Floor\Adjacent Stairwell 0.15 0.39 1.12 9.87 1.12 0,34 Ov24 4.43 1.17 2nd Floor\Adjacert Stairwell 0.20 0.83 1-71 9.91 1.12 0.34 0.24 3.91 1.17

All levels reported are below (heir associated standards and guidelines. □> sc o Standard/Guideline as z OSHA PEL for Cadmium: 5pg/m’ o o OSHA PEL for Chromium: 1000pg/m’ ro OSHA PEL for Copper: 1000pg/m’ ro

OSHA PEL for Iron; lOOOOpg/m’ cn co o OSHA PEL for Lead; BOpg/m’ o cn 03 OSHA PEL for Manganese; 1000pg/m’ Ji. CD OSHA PEL for Nickel; 1000gg/m’ o H K a OSHA PEL for Zinc; 5000pg/m’ I I—i sz s Q o 00 o lO. o o I co o o S CO cn I—i o

NYC-WTC_000210399