NYC 9/11 Public Portal Document
104 Ens; 25th StreE
_ ~, New York. :Vrw York 1001
wvvmatc•envvo cor-
212.353.82E s:
Fax 212.353.830+_
September 26, 2001
a_nt:~ l
C Environt•
. 30rh
yam_ _:-
ttn: Mr. _
.a: Report c_` TEM i._;>.i.yeis
Dear Mr.
(TEN)
*ra%ism' cion electron microscopy
` po]lowing are the results of from our Group No. 5556
eleven PCM a' : s r..les
ana.-vs ls of
Cliefl- Southend Ave:zuz
• project Name: 345 and 355 Buildings 100 and 200
and Apartments,
Location: Hallways 09/26/01
Samples received in TEM Lab:
transmitted to you
and document the data
These results will confirm in stric ce w199ethe
today The analyses t 2 coAugustnl5 ,
NIOSH method 7402 Issue
methodology of
examined at
from each of the samples were
Forty grid openings (approximately 1,000X and 10,000X)
relatively low magnifications
between 0.25um
than Sum in length and widths
for structures greater length-to -width ratio greater than
3:1.
and 3uta, arid having a to be observed by PCM
structures would be large enough structures were detected i.n
These Asbestos and non -asbestos
analysis.
the samples in the following proportions:
cellulose fiber F/CC as
chrysotile gypsum Asbestos
sample glass
number
0.0% 6:2% 0.0
0.0% 93.8%
.. . . .. ......... ............... .. . .. ... .
3 0.0: 0.0% 0.00
22.2% 77.9- 0.0
4 0.0; 23.1%
0.0$ 76.9% 0.0
S 55-0% 0.0% 45.0%
6 0.0- 14.3% 0.0
76.2% 9.5%
8 0.0% 13.6a 0.0
77.3's 9.1%
13 0.Os 0.0% 0.0
100.0% 0.0%
14 0.0%_ 0.0% 0.0
100.0% 0.0a
0.0% 0,001
17
68.7°s 0.0- 27. 7 's
18 3.6% 33.3's 0.0
0.0%
19 0. 0 0% 66.7"%
58.0% 0.0
0.0`9 42.0% 0.0:
20
~Ft
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