Phenylurea herbicides in the environment: Recent updates on occurrence, distribution, risk assessment, and removal techniques.
Zhang YX, Zhang Y, Zhang X, Wang YN, Li DW
Soil Health
Herbicides sprayed on farm fields a county away can travel through groundwater and show up in the stream where you collect water for your garden or the soil in your raised beds.
Phenylurea herbicides are a type of weed killer used heavily in agriculture that don't just stay where they're sprayed—they spread through soil and water, build up over time, and are hard for nature to break down on its own. Scientists reviewed all the ways these chemicals move through the environment and compared different methods for cleaning them up, from using sunlight-driven chemical reactions to microbes that can eat the compounds. The review also highlights new materials and combined treatment approaches that show promise for tackling this persistent pollution.
Key Findings
Phenylurea herbicides persist across multiple environmental compartments—soil, surface water, groundwater, and living organisms—due to their high mobility and resistance to natural breakdown.
No single removal technology is fully effective; advanced oxidation, bioremediation, and adsorption each have significant trade-offs in cost, efficiency, and real-world applicability.
Novel functional materials and synergistic treatment systems (combining two or more methods) represent the most promising emerging direction for remediation of phenylurea herbicide contamination.
chevron_right Technical Summary
A new review maps how a class of weed-killing chemicals called phenylurea herbicides—widely used in farming worldwide—are accumulating across soils, water, and ecosystems far beyond the fields where they're sprayed, and evaluates which cleanup technologies actually work.
Abstract Preview
Global population growth and economic development have driven a rapid increase in agricultural production, leading to a substantial rise in the application of pesticides such as phenylurea herbicid...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Was this useful?
Ancient DNA Reveals Pre-Columbian Amazonian Forest Management at Scale
Forests and fruits we romanticize as wild — including many plants now in our kitchens and gardens — may exist in their current abundance precisely because an...