NYC 9/11 Public Portal Document
K-5: Asbestos Air Testing
PCM Results (0.01 ftec) TEM Results (70 8/mm2)
Location
Period No. of No. above No. Of
B: Sarrtples 0.01 f/cc Samples
290 Broadway 09/13/01 -09/28/01 18 0 58 0
10/09/01- 10/23/01 16 0 16 0
12/03/01 - 01/02/02 21 0 21 0
1 Bowling Green 10/12/01- 10/25/01 18 0 16 0
Note; All results were non detect except for 4 of the 58 samples collected between 9/13/01 and 9/28/01.
Two of these sample showed asbestos levels of 25 s/mm2 by TEM and 2 samples could not be
analyzed because of overloaded filters.
K-6: Asbestos Dust Testing at 290 Broadway
Sample Collection Information PLM
No. of Samples
saBOii Type Asbestos Detected Asbestos Detected
09/14/01 Vacuum 5 Not Analyzed 5
09/14/01 Tape 5 0 0
09/14/01 HVAC Filter 3 0 0
Screening No. Above No. Above
FoHutant Test Method No, of NtLOf
Screening Screening
Saties Samples
.Kajiiit Level
Lead 50 ug/m3 NIOSH 7082 3 0 6 0
Respirable Dust 5.0 mg/m3 NIOSH 0600 3 0 6 0
Carbon Dioxide 5000 ppm Telaire CO2 3 0 6 0
Carbon Monoxide 50 ppm SGA91 3 0 6 0
VOCs 1 ppm [1] H-Nu Photo 3 0 6 0
[1] = Method Detection Limit
Other Indoor Air Studies
“Characterization of Particulate Found in Apartments After Destruction of the World
Trade Center.”*® This study was conducted at the request of the Ground Zero Elected Officials
Task Force. This study selected two residential apartment buildings for sampling - one
presumed to have significant WTC dust contamination and the other not - based on their
locations. Six air samples were collected fi-om inside one apartment building and five from the
other. All 11 samples were analyzed by the TEM method. The study found higher levels of
18
Eric J. Chatfield, Ph.D., Chatfield Technical Consulting Limited, and John R. Kominsky,
M.Sc.,CIH, CSP, CHMM, Environmental Quality Management, Inc.; October 12,2001.
97 Report No. 2003-P-00012
NYC-WTC_000145617
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