About Us | Help Videos | Contact Us | Subscriptions

Journal of Environmental Quality Abstract - Special Submissions: Agricultural Air Quality

Review of Airborne Emissions from Agricultural Fumigants: Design and Uncertainty Considerations for the Use of the Integrated Horizontal Flux Method


This article in JEQ

  1. Vol. 40 No. 5, p. 1366-1374
    Received: June 29, 2009

    * Corresponding author(s): haajwa@ucdavis.edu
Request Permissions

  1. D. A. Sullivana and
  2. H. A. Ajwa* *b
  1. a Sullivan Environmental, Alexandria, VA 22308
    b Univ. of California-Davis, Salinas, CA 93905


Ground-level area sources, such as those associated with the use of agricultural fumigants, waste disposal sites, wastewater lagoons, and other applications, present a challenge in terms of characterizing atmospheric flux as a function of time. Studies are costly in terms of field activities and laboratory analysis. The optimization of field study design, therefore, is essential to conduct cost-effective research. The collection of on-field profile data for airborne concentration, wind speed, and wind direction can be used in conjunction with the integrated horizontal flux (IHF) method to empirically compute complex source terms as a function of time. This paper focuses on complicating factors and field study design issues for the use of the IHF method. Insights and examples are drawn from five field research studies. The methods and results of characterizing the uncertainty and method precision in the emission fitting for the IHF method also are presented.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © 2011. Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.