Air pollution from hot mix plants.
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Air pollution from hot mix plants.

Filetype[PDF-2.46 MB]


English
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Details:

  • Alternative Title:
    Air pollution from hot mix plants : Louisiana highway research.
  • Creators:
  • Corporate Creators:
    Louisiana. Dept. of Transportation and Development
  • Corporate Contributors:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    50
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Louisiana
  • Corporate Publisher:
    Louisiana. Dept. of Highways
  • Abstract:
    The Louisiana Air Control Commission adopted Regulation II, effective 1969, which sets stringent limits on suspended particulates. Because of the lack of knowledge concerning air pollution caused by hot mix plants within the Stake and because of the unknown consequences of strictly applying the new regulation, a moratorium of one year was allowed the hot mix industry. This study was undertaken to determine the pollution caused by hot mix plants.

    A wide range of operating conditions was found to exist. The worst condition observed (by a similar study prior to this project) was approximately 1000 micrograms/cubic meter/day. The best plant had approximately 175 micrograms/cubic meter/day. No plant now operating in the State consistently operates within the regulations while maintaining reasonable projection. All plants could improve their particulate emissions through more care of and concern for their present equipment and procedures. Almost half of the pollution caused by most plants originates from sources other than the stack. air pollution for these secondary sources could be significantly reduced. The stack emissions should be reduced by the use of water scrubbers or bag collectors.

    It is recommended that the present regulation be slightly altered for a period of three years to allow for purchase of better equipment, for proper repair and cleanup procedures to be effectively implemented, and for production personnel to acclimate themselves to the necessary techniques. It is also recommended that the hot mix industry self-regulate themselves immediately.

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