Reducing Atrazine Losses: Water Quality Implications of Alternative Runoff Control Practices

Wyatte L. Harman, E. Wang, J. R. Williams

研究成果: ジャーナルへの寄稿総説査読

28 被引用数 (Scopus)


Water quality is being affected by herbicides, some allegedly harmful to human health. Under scrutiny is atrazine (1-chloro-3-ethylamino-5-isopropylamino-2,4,6-triazine), a commonly used herbicide in corn (Zea mays L.) and sorghum [Sorghum bicolor (L.) Moench] production. Concentrations of soluble and adsorbed atrazine losses sometimes exceed the safe drinking water standard of 3 μg L-1 established by the USEPA. This study assesses the protective implications of runoff control structures and alternative crop farming practices to minimize atrazine losses. Using a computerized simulation model, APEX, the following four practices were the most effective with respect to the average atrazine loss as a percent of the amount applied: (i) constructing sediment ponds, 0.09%; (ii) establishing grass filter strips, 0.14%; (iii) banding a 25% rate of atrazine, 0.40%; and (iv) constructing wetlands, 0.45%. Other atrazine runoff management options, including adoption of alternative tillage practices such as conservation and no-till as well as splitting applications between fall and spring, were marginally effective.

ジャーナルJournal of Environmental Quality
出版ステータス出版済み - 2004

!!!All Science Journal Classification (ASJC) codes

  • 環境工学
  • 水の科学と技術
  • 廃棄物管理と処理
  • 汚染
  • マネジメント、モニタリング、政策と法律


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