NYC 9/11 Public Portal Document
TEM Results (70 s/mm2)
Location Sampling
Period No. of No. or No. above
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 tnformation
No. of Samples
Os Asbestos Detected Asbestos Detected
Net
09/14/01 Vacuum 5 Not Analyzed 5
09/14/01 Tape 5 0 0
09/14/01 HVAC Filter 3 0 0
290 Broadway SOO r»earl Street
■ gj
Screening
NO. Of
No. Above
No. Of
No. Above
sg Test Method Screwing
Samples
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] a 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 from 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_000145452
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