NYC 9/11 Public Portal Document
DFP-ECB Fax:212-361-1577 Mar 21 2003 02:01 P.02
• :'! rage 1 OI.i
Subj: Re::carpet sc ation results
Date: 3/12/2003 5:12: PM Eastern Stan$ard Time
From Jet. ins .Cat ~pamail.epa.gov:
To: - :~...
File: Wlltoth-Mil • D 94-App7-uttradath.pdf (4972596 bytes) DL:Time
11$20a s 12 minutes •,
(See attached fife: Wile nth-Millette-94-Appl ltra data.pdf)-
The level of `393060 s! n2 by sonicatior in 'carpet is quite
high. I: have: attached ;itudy that shows thai even
in buildings known to re asbestos contairshg materials
is around 1.000 stru s per square oentirnieter, according
to an :abthoritative'.book, excerpts attached.
Before*:the .W TO-cofla :, jn 1980, suffers durst outdoors
in New: YorkCI#y-was a average of 510Q s/dm2
(from.a study by;Ewing.jj iresented at the Jot r son Conference
in the.sumrer'of 2002)f.
Thus, the levels you foil dare definitely over background
and deserveatt+htion Jl Jobody can tell you' 0th any
certainty exactly. how hoi rdous these Ievel .are, but
EPA statutes arid poll lE s °say that any expoure to asbestos
Is hazardous, and atter Dtl'ng to get levels to'•background
is desirable..
Cate Jenkins
To: Cate Jbnkins/DC/USEPANS@EPA
03/12/20q;3(4:42 cc:
PM :E Subject: carpet sonication results
Tue$ , March 18, 2003 America Online.
NYC-WTC 000093091
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