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NYC-WTC_000220443

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NYC 9/11 Public Portal Document

Ambient Group, Inc. Particulate Analysis On Air-O-Cell (Zefon) Cassette

PROJECT ID: 211358 CLIENT; J. RESNICK & SONS LOCATION: 75 PARK PLACE

FIELD ID DATE DATE FLOW SAMPLE SAMPLE CONCENTRATION LAB ID COLLECTED ANALYZED RATE TIME VOLUME DESCRIPTION CONSTITUENTS TOTAL CT CVm3

211358-01 9/19/01 9/20/01 15 10 0.026563 LOBBY SECURITY DESK FUNGAL SPORES 31 1,167 E20558 1:17 PM SKIN FRAGMENTS 59 2,221 CARBON PARTICLES 289 10,880 CELLULOSE 28 1,054 CEMENT DUST 291 10,955 GRAVEL ROAD DUST 463 17,431 FIBER GLASS 26 979

o 1^ Analyst; O Tarek Fata m -□ NO - Nona Dttectad, NA - Not analyztd. All ruulta ditclOMd In thl> roport ralata only to tha Itama taatad. Identification la largely baaed on the vlalbla characterlatlca aa they appear under light microecopy. § Preeumpthre culturing la required for confirmation. No reproduction of all or any portion of thia report ahall occur without written approval of Ambient Group, Inc. Unlaaa otharwiaa dlractad by tha die o Ambient Group will retain the aamplaa Hated in Ihia report for five (5) daya, after which time they may be dlapoaad of In accordance with applicable regulaUona. J] DO

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NYC-WTC_000220443

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NYC-WTC_000220443Source: NYC Law Department, mirrored locally

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NYC-WTC_000097799 · Box DEP Box 33

Cover letter from Ambient Group Inc dated Sep 28, 2001, summarizing an indoor environmental quality survey performed on Sep 26.

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