United States                       Air and Energy Engineering
                   Environmental Protection              Research Laboratory
                   Agency                           Research Triangle Park NC 27711
                   Research and Development	EPA/600/S2-91/061 Dec. 1991

vsrEPA      Project  Summary
                   Evaluation  of  VOC  Emissions
                   from  Heated  Roofing Asphalt
                   Peter Kariher, Michael Tufts, and Larry Hamel
                     A short-term  in-house project to
                   charecterize emissions from a simulated
                   asphalt roofing kettle was performed at
                   EPA/AEERL. Hot asphalt surfacing and
                   resurfacing has been identified as a
                   possible significant source of volatile
                   organic compound (VOC) emissions that
                   may affect human health and contribute
                   to the ozone non-attainment problem.
                     This Project Summary was devel-
                   oped by EPA's Air and Energy Engi-
                   neering Research Laboratory, Research
                   Triangle Park, NC, to announce key find-
                   ings of the research project that is fully
                   documented in a separate report of the
                   same title (see Project Report ordering
                   information at back).

                     The purpose of the study was to col-
                   lect, identify and semi-quantitate as many
                   compounds as possible that are discharged
                   during the open  heating of roofing asphalt
                   and relate them to the amount volatilized
                   into the air
                     Types 1, 2, and 3 mopping grade as-
                   phalts were chosen for this study. They
                   constitute more  than 90% of roofing as-
                   phalt used Samples of each type of as-
                   phalt were placed  in a simulated roofing
                   kettle, heated to predetermined tempera-
                   tures, and sampled for volatile and semi-
                   volatile organic emissions. Compounds
                   identified during this study were alkanes,
                   aromatics, a ketone, and an aldehyde.

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    P. Kariher, M. Tufts, and L Hamelare with Acurex Corp., Research Triangle Park, NC
      27709.
    Bobby E. Daniel is the EPA Project Officer, (see below).
    The complete report, entitled "Evaluation of VOC Emissions from Heated Roofing
      Asphalt," (Order No. PB92-115286/AS; Cost: $19.00, subject to change) will be
      available only from:
            National Technical Information Service
            5285 Port Royal Road
            Springfield,  VA22161
            Telephone:  703-487-4650
    The EPA Project Officer can be contacted at:
            Air and Energy Engineering Research Laboratory
            U.S. Environmental Protection Agency
            Research Triangle Park, NC 27711
United States
Environmental Protection
Agency
Center for Environmental Research
Information
Cincinnati, OH 45268
      BULK RATE
POSTAGE & FEES PAID
 EPA PERMIT NO. G-35
Official Business
Penalty for Private Use $300
EPA/600/S2-91/061

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