program should include research to optimize inputs to AFOs, optimize recycling of materials, and significantly decrease releases to the environment.

Setting priorities for both short- and long-term research on estimating air emission rates, concentrations, and dispersion requires weighing the potential severity of adverse impacts, the extent of current scientific knowledge about them, the potential for advancing scientific knowledge, and the potential for developing successful mitigation and control strategies (Finding 13, pp. 12, 154).

RECOMMENDATIONS:

  • Short-term research priorities should improve estimates of emissions on individual AFOs including effects of different control technologies:

    1. Priority research for emissions important on a local scale should be conducted on odor, PM, and H2S (also see Finding 2).

    2. Priority research for emissions important on regional, national, and global scales should be conducted on ammonia, N2O, and methane (also see Finding 2).

  • Long-term research priorities should improve understanding of animal production systems and lead to development of new control technologies.



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