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                                                                                         Aerosol Test Facility
                                                                                         at  Research Triangle Park
                                                         OFFICE OF RESEARCH
                                                         AND DEVELOPMENT
                                                         National Homeland
                                                         Security Research Center
                                                         Aerosol Test
                                                         Facility at
                                                         Research
                                                         Triangle  Park
                                                         ADVANCING OUR
                                                         NATION'S SECURITY
                                                         THROUGH  SCIENCE
                                                                          EPA's Aerosol Test Facility (ATF) is
                                                                          located in Research Triangle Park, North
                                                                          Carolina. It is available to outside
                                                                          agencies and businesses for research
                                                                          into the behavior of aerosols
                                                                          under controlled conditions.
                                                                          Researchers, engineers, and
                                                                          product designers can obtain
                                                                          highly accurate data that will
                                                                          form a scientifically sound basis
                                                                          for their decisions.

                                                                          The EPA Aerosol Test Facility includes
                                                                          one of the largest aerosol wind tunnels
                                                                          in the world. It has a cross-section of
                                                                          4x4 meters and can be used with
                                                                          full-sized adult manikins.

                                                                          The ATF offers agencies or businesses
                                                                          all the advantages of a large test facility
                                                                          — without the upfront investment in
                                                                          equipment and continuing upgrades.

                                                                          For additional information on this facility,
                                                                          or on NHSRC products or tools, visit us at
                                                                          www.epa.gov/nhsrc.

                                                                                  Small aerosol chamber (below), a researcher
                                                                                      with aerosol measurement equipment
                                                                                                (above), and an adult-
                                                                                               sized heated, breathing
                                                                                                   manikin (right) for
                                                                                                    human exposure
                                                                                                           testing
                                                                                                                       Using Our Facilities
EPA's campus in Research Triangle Park
is home to one of the world's largest
groups of scientists, engineers, policy
   makers, and administrators dedicated
    to understanding and solving
      environmental problems. Specialty
      laboratories and other unique
      research resources can be used by
      scientists and engineers in other
      federal and state
    agencies, academic
  institutions, organizations,
and companies. Provisions
are in  place to ensure
that EPA research will
not be affected by
any agreements with
other  users. EPA's research
and development ATF may
be used for a variety of
research purposes. To  find
out more about how your
agency, business, or
organization can participate,
please contact:

Russell W. Wiener
NHSRC
USEPA D-205-03
Research Triangle Park, NC 27711
(919) 541-1910
wiener.russell@epa.gov

Andre  Reinhart
163 USEPA Facilities
26 West Martin Luther King Drive
Cincinnati, OH 45268
(513) 487-2119
reinhart.andre@epa.gov

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Research Areas for  Possible
Exploration  at the ATF
Effective Research Tools
                                                                                                                     Legend
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                                                                                                                       00910018
                                                                                                                     I OOOtoOM
ATF Essentials
  Aerosol and gas transport, dispersion,
  and dynamics
  Aerosol residence time and decay
  Wake/eddy/stream/turbulence
  Ventilation characterization
  Particle collector research and design

  Isokinetic sampling  comparisons
  Flow-rate behaviors
  Aerodynamic interactions
• Human exposure

  Concept/prototype  verification
  Technology verification
                                             The ATF's experimental and
                                             computational fluid and particle
                                             dynamics tools enable researchers
                                             to determine and compare aerosol
                                             residence time, velocity, and turbulence
                                             characteristics at various points within
                                             the test room.
  Aerosol generation and sampling
• Wind tunnels with separate human
  exposure (low velocity) and
  atmospheric exposure test sections

• Particle Digital Image Velocimetry
  (PDIV) and three-dimensional
  Laser Doppler Velocimetry (LDV)
  measurement
  Experimental and numerical tools  for
  fluid and particle dynamics

The ATF has a heat exchanger and
humidification/dehumidification system
to ensure constant temperature and
humidity. Large filters are strategically
located in the test section, at the
safety screen, and just before the  heat
exchanger. Doors are equipped with
Magnalock switches for safe and easy
release.

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