195 document results

Summary EPA memorandum addressing World Trade Center asbestos contamination status and agency efforts to provide information on the situation.

If a substance contains 1 % or more asbestos, it is considered to be an "asbestos-containing material."

Summary EPA memorandum addressing World Trade Center asbestos contamination status and agency efforts to provide information on the situation.

EPA has also made it clear in Superfund guidance that 1% asbestos in soils is not a safe level, if the soils are stirred up and asbestos gets in the air.

Summary Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.

EPA has also made it clear in Superfund guidance that 1% asbestos in soils is not a safe level, if the soils are stirred up and asbestos gets in the air.

Summary Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.

If a substance contains 1% or more asbestos, it is considered to be an "asbestos-containing material."

Summary Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.

If a substance contains 1% or more asbestos, it is considered to be an "asbestos-containing material."

Summary Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.

EPA has also made it clear in Superfund guidance that 1% asbestos in soils is not a safe level, if the soils are stirred up and asbestos gets in the air.'’’

Summary EPA memorandum addressing World Trade Center asbestos contamination status and agency efforts to provide information on the situation.

Airborne dust clouds were generated from mixtures of soils with different asbestos varieties in bulk concentrations ranging from 1 to 0.001 % asbestos....

Summary EPA memorandum on wipe sampling methods for asbestos in Lower Manhattan buildings, resuspension projections, and cancer risk estimates from WTC dust exposure.

of asbestos containing materials (ACM).

Summary Memorandum detailing procedures for asbestos wipe sampling in Lower Manhattan and estimating associated cancer risks from dust exposure.

building of asbestos containing materials (ACM).

Summary Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.

Airborne dust clouds were generated from mixtures of soils with different asbestos varieties in bulk concentrations ranging from 1 to 0.001 % asbestos....

Summary Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.

Airborne dust clouds were generated from mixtures of soils with different asbestos varieties in bulk concentrations ranging from 1 to 0.001 % asbestos. ...

Summary Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.

The situations involved actual buildings and rooms contaminated with asbestos, such as after the San Francisco earthquake. Researchers measured the levels of asbestos on the surfaces.

Summary EPA memorandum on wipe sampling methods for asbestos in Lower Manhattan buildings, resuspension projections, and cancer risk estimates from WTC dust exposure.

The situations involved actual buildings and rooms contaminated with asbestos, such as after the San Francisco earthquake. Researchers measured the levels of asbestos on the surfaces.

Summary Forwarded EPA memorandum dated June 9, 2002, concerning the Asbestos Reservoir and carpet testing methods.

This method is widely recognized, and used by EPA Region 1 in asbestos risk assessments.^’ It is used not only in the field of asbestos, but also for dusts containing other toxic substances such as

Summary Memorandum comparing asbestos data in Manhattan to other sites and arguing for cleanup under the Superfund statute.

ND ND had non-detectable asbestos routine activities, remote stationary air monitor, 4 of 10 (40%) 0.009 0.0003 - 0.036 samples had detectable asbestos

Summary EPA memorandum addressing World Trade Center asbestos contamination status and agency efforts to provide information on the situation.

US EPA (April 18, 1989) Interim Asbestos NESHAP Enforcement Guidance - “Friable asbestos” 1% by Area of Volume vs. 1% by Weight.

Summary Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.

TYPICAL ASBESTOS DUST LEVELS INSIDE BUILDINGS^® Levels of asbestos found from testing of a large number of interiors with or without asbestos building materiate and/or asbestos contamination

Summary Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.

(CAA) asbestos National Emission Standards for Hazardous Air Pollutants (NESHAP) specifically require the removal of asbestos-contaminated carpet.

Summary Memorandum comparing asbestos data in Manhattan to other sites and arguing for cleanup under the Superfund statute.

and conducting an air test for asbestos.

Summary Technical memorandum from EPA discussing ultrasonication testing for asbestos in carpets and HEPA vacuuming effectiveness.

CAA) asbestos National Emission Standards for Hazardous Air Pollutants (NESHAP) specifically require the removal of asbestos-contaminated carpet.