NYC 9/11 Public Portal Document
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Cambridge, MA: Health Effects Institute.
30. The AHERA TEM level of 70 structures per square millimeter is the same as 0.02 structures
per milliliter. This translates to about 0.01 PCM-equivalent fibers per milliliter. For a lifetime
exposure, this would result in an excess cancer risk of over 2 per 1000. See EPA’s Integrated
Risk Information System for asbestos at http://www.epa. gov/iris/subst/03 71 .htm .
Even the NYC Department of Environmental Protection testified that this would be safe for only
short periods of time. The following is a quote from Frieden, NYC Commissioner:
Health professionals have stated that short-term exposure to airborne asbestos, at levels equal to
or lower than 0.01 Ifibers per milliliter, PCM equivalent, carries an extremely low risk of causing
asbestos-related illness.
[Frieden, T. R., and Miele, J. A. (February 11, 2002) Testimony before the U. S. Senate
Committee on Environment and Public Works Subcommittee on Clean Air, Wetlands, and
Climate Change. Alexander Hamilton U. S. Customs House, New York City. Thomas R. Frieden,
Commissioner, New York City Department of Health, Joel A. Miele Sr., Commissioner, New York
City Department of Environmental Protection]
See discussions and chart of different air asbestos levels with associated risks in the following
memorandum:
Jenkins, C. (March 11,2002) Status of air and dust asbestos testing after WTC collapse: 1.
Misrepresented “safe levels" and standards for asbestos; 2. Failure to test at low levels related to
safety; 3. Region 2 relied on more sensitive TEM tests for settled dusts in own building, required
by EPA policy, did not provide same sensitive testing for rest of NYC, and refused Region 8 offer
of free sensitive testing for rest of NYC. Cate Jenkins, Hazardous Waste Identification Division,
OSW, EPA, memorandum addressed to affected parties and responsible officials. Posted at
www.N YenviroLAW .org
31. US EPA (November 1,2000), op. cit.
32. US EPA (1990) Common Questions on the Asbestos NESHAP. EPA Publication No.
340/1-90-021. Available online at: http://www.epa.gov/ncepihom/nepishom/
Q: What is the acceptable exposure/ambient air standard for asbestos?
A: EPA does not specify an acceptable exposure/ambient air standard.
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