Fax cover sheet, 105 Duane Street site file

NYC 9/11 Public Portal Document

(Page 14 of 16)

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-07/19/2002 1027 FAX 2126197476 TenaatsaN isbbrs la04

105 Washington — Tenants and Neighbors

(f1cs42). Asbestos is a human carcinogen and exposure occurs when the $bets are 1,1 4 into the lungs. The presence of elevated levels of asbestos dust on sur cis may result In airborne fibers if the dust is disturbed.

The State of New York has recommended an airborne exposure llmft of 0.01 flbar cubic centimeter, however, exposure to any carcinogen should be meIntaind to a level is low as reasonable achievable. The method used in this study does not peuvlda information on the level of airborne exposure, but instead provides an as 's'ent of the level of asbestos settled onto surfaces. It does provide inforn tioa an the poteli;l f exposure should contaminated dust become airborne.

Flndings A visual inspection revealed the offices to be in generally good condition, although die carpet appeared worn.

ust sample result Three microvac dust sample and a blank were collected to determine levels of esbeslos dust in the carpets- The lab .report from IATL is attached to this repot[. The foUowlg si nniarizes the $minas;

Sample # C758824 — This was the field blank and serves as a quality control asm$. verify that handling and shipping the samples was not a source of contrnnfion. The sample bad no detectable levels of asbestos.

Staple # C758832 This sample was taken in the back office labeled Youth Or *"a Office. The sample was taken from the carpeted floor near the back exit door. The simple had 9,300 asbestos fibers per square centimeter of floor surface_ This is indiaedve of asbestos contamination of the carpet.

Sample # C755953 — This sample was taken at the reception desk at the entrance to the Tenants and Neighbors office. The sample had no detectable asbestos.

Sample # 1508699 — This sample had low levels of asbestos on it. It was taken hear dl0 windows on the east side of-the office by the water cooler. The sample bad 740 ubearo. fibers per square centimeter. This is a low level of asbestos and Is below the detmtiate limit of the method of -1000 st uct ices per square centimeter.

Conclusion 'and Recommendation The results indicate that the Ievels of asbestos fibers in the carp.*! in some areal secs elevated. This survey indicates that the Collapse of the trade oetiter i 'i the r*atte at asbestos fibers, which contaminated the interior surfaces of the office. The cl "" o the building has not adequately reduced the level of asbestos in the settled dam. The carpet should be cleaned using a ITEPA filter equipped vacuum cleaner. A pretU1es.! elaahing coinpany should also clean the carpets again using hot water boas w6thod5. The exterior of the windows should be cleant4- -

91 04611 LWNYC0004611

NYC-WTC 000125840