NYC 9/11 Public Portal Document
VOCs in Air
WTC North Tower Center
Benzene Toluene
200000 200000
150000- 150000
a a
100000 100000
V
0
50000
o
U 50000
0 iii
Sept'1 ' 1 1 ev av
0- iiil.i11
Sept 1 1 ct 1
.. ii I i
ov ov
Date Date
2-Butanone Chloromethane
200000 200000
150000 150000-
.0 aa
8 100000 100000
e
50000
o
v 50000
0 0
Sept 1 1 1 ct t2 ov ov Sept 1 d1 1 ct M ov ov
Date Date
Figure 1. Select VOCs at WTC North Tower Center; Sept 16 - Nov 12, 2001.
VOCs in Air
WTC South Tower Location I
Benzene Toluene
60000 60000
0a ao
30000 30000-
0 0
0
Sept 2
IIIIlIbIi II ct
lIII ct Nov
0
Sept 2 ct 1 d Nov
1 1
Date Date
2-Butanone Chloromethane
60000 60000
aa
aa
30000 30000
c c
8 8
0 1 . 111 I- I 0
Sept 2 b 1 1 a
ct Nov 7 Sept 2 at 1 ct &t Nov
Date Date
Figure 2. Select VOCs at WTC South Tower Location 1; Sept 16 - Nov 12, 2001.
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NYC-WTC 000130455
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