NYC 9/11 Public Portal Document
amounts of WTC-related materials. Cleaning up such areas should
be left to certified professionals. For a respirator to be protective,
individuals need to insure that they are using a filter cartridge
appropriate for the substances they are potentially exposed (to?).
In addition, people wearing respirators need to be “fit tested" on a
yearly basis to insure that the respirator fits well enough to provide f
protection. (JC/ATSDR)
1
C. Indoor Air Testing c
• Will the Health Department conduct more indoor air testing?
(will you come and test my apartment?)
No. The results of indoor air and dust testing to date, have not
shown elevated levels of asbestos in indoor air. Low levels of
asbestos has been found in some indoor dust samples, but at
levels not exceeded regulatory standards. At this time, we are
recommendit q that residents of lower Manhattan conduct freguent
cleaning, (NJ/CB) There is cuKentIv-an-lndoor-Air Task Force
being coordinated by the EPA. City and state agencies, including
the city-departments of Environmental Pretection and Health, are
participating on the Task Force. There may be more indoor air
testing conducted as part-of the Task Force’s -recomtfmendations
fthis-needs to be checked after the 1^-Task Force meeting on 2/21]
• When will the final results of the ATSDR indoor air sampling
be made available? What other substances besides asbestos
and fiberglass are being analyzed?
The final report on the indoor air sampling will hopefully be
published in April. Other substances being analyzed in the air
samples are fibrous glass and particulate matter (size 5 and 10).
Other substances being analyzed in the dust samples are silica,
mica, calcite, gypsum, and pH
• For how many hours did the air sampling occur in the ATSDR
sampling? Don’t particles and substances increase during the
night hours?
Sampling took place for as long as it took for the pumps to collect
The volume of air specified in the sampling mnethodology. This
took 5-8 hours. The focus of this project was indoor sampling. The
levels of particles and substances change based on the activities
inside a residence not a time of day. (JC/ATSDR)
NYC-WTC_000142759
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