环境科学
分水岭
杀虫剂
水土评价工具
农业
环境工程
水文学(农业)
工程类
计算机科学
流域
地图学
生物
农学
机器学习
水流
岩土工程
地理
生态学
作者
Lê Hoàng Tú,Michael L. Grieneisen,Ruoyu Wang,Hirozumi Watanabe,Minghua Zhang
标识
DOI:10.1016/j.jenvman.2022.117123
摘要
This research provides the first assessment of the environmental fate and transport of agricultural pesticide formulation agents following a dynamic modeling approach. Two formulation agents of toxicological concern, Naphthalene and Solvent Naphtha (Petroleum), Heavy Aromatic, were simulated from their usage in commercially-applied pesticides. The Soil and Water Assessment Tool (SWAT) was applied to simulate these formulation agents during 2011-2014 in the agriculturally intensive Sacramento River watershed. The sensitivity and uncertainty of some key parameters were analyzed. The predicted transport masses of these formulation agents in surface water were strongly associated with rainfall. While predicted transport masses were quite small at the watershed scale (<0.01% of applied masses), they were 26-31 times higher in certain locales at the subbasin level. Since many formulation agents are widely used in pesticides throughout this and other agriculturally impacted watersheds, their potential risks in the environment need more thorough investigation by modeling and monitoring, especially for areas with heavy usage.
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