Low-cost environmental traceability of pesticides is essential for safety.

IF 8.4 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Martina G Vijver, Geert R de Snoo, Marco D Visser
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Abstract

We issue a call to action: in the context of safe design, all pesticides must be traceable via low-cost methods that are accessible for routine environmental monitoring by public institutions. Insights into the far-reaching impacts of pesticides depend on our ability to detect these chemicals in the environment. Once a pesticide is authorized for use, environmental monitoring serves as a critical warning system that complements risk assessments. Postregistration monitoring is recognized by different policy frameworks like e.g. the Water Framework Directive and the European Green Deal. However, we highlight an urgent concern: despite formal requirements for detectability in registration, novel pesticides are becoming progressively undetectable in practice. We demonstrate how mandated reductions in pesticide use measured as volume can drive chemical innovations that unintentionally undermine environmental accountability and safety. For example, volume can be decreased while maintaining effectiveness by increasing the specificity or toxicity of the pesticide. This phenomenon is analogous to 'analytical homeopathy,' where active ingredients remain effective even at extremely low dosages, rendering them undetectable by standard analytical chemistry. This issues a significant challenge: higher toxicity can imply lower environmental quality standards near detection limits. This leads to the troubling problem of "known unknowns": risks posed by active ingredients whose emissions remain unquantified under current field monitoring conditions. In response to this emerging threat, we propose a foundational principle: all synthetic pesticides should be detectable in the environment at the concentration of their active ingredients, enabling cost-effective and reliable monitoring. If neglected then the credibility and function of monitoring as a warning system for unintended biodiversity harm is increasingly undermined, regardless of formal analytical capabilities.

低成本的环境可追溯性对农药的安全性至关重要。
我们发出行动呼吁:在安全设计的背景下,所有农药必须通过低成本的方法可追溯,以便公共机构进行日常环境监测。深入了解农药的深远影响取决于我们在环境中检测这些化学物质的能力。一旦农药被批准使用,环境监测就会成为一个重要的预警系统,补充风险评估。注册后监测得到了不同政策框架的认可,例如《水框架指令》和《欧洲绿色协议》。然而,我们强调了一个紧迫的问题:尽管在登记中对可检测性有正式要求,但在实践中,新型农药正逐渐变得无法检测。我们展示了强制性减少农药使用量如何以数量衡量,从而推动化学创新,无意中破坏了环境问责制和安全。例如,可以通过增加农药的特异性或毒性来减少体积,同时保持有效性。这种现象类似于“分析顺势疗法”,其中活性成分即使在极低剂量下仍然有效,使其无法被标准分析化学检测到。这提出了一个重大挑战:更高的毒性可能意味着接近检测极限的环境质量标准较低。这就导致了令人不安的“已知的未知”问题:在目前的现场监测条件下,活性成分的排放仍然无法量化,这构成了风险。为了应对这一新出现的威胁,我们提出了一个基本原则:所有合成农药都应该在环境中以其有效成分的浓度检测到,从而实现具有成本效益和可靠的监测。如果被忽视,那么无论正式的分析能力如何,监测作为意外生物多样性危害预警系统的可信度和功能都将日益受到破坏。
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来源期刊
Integrated Environmental Assessment and Management
Integrated Environmental Assessment and Management ENVIRONMENTAL SCIENCESTOXICOLOGY&nbs-TOXICOLOGY
CiteScore
5.90
自引率
6.50%
发文量
156
期刊介绍: Integrated Environmental Assessment and Management (IEAM) publishes the science underpinning environmental decision making and problem solving. Papers submitted to IEAM must link science and technical innovations to vexing regional or global environmental issues in one or more of the following core areas: Science-informed regulation, policy, and decision making Health and ecological risk and impact assessment Restoration and management of damaged ecosystems Sustaining ecosystems Managing large-scale environmental change Papers published in these broad fields of study are connected by an array of interdisciplinary engineering, management, and scientific themes, which collectively reflect the interconnectedness of the scientific, social, and environmental challenges facing our modern global society: Methods for environmental quality assessment; forecasting across a number of ecosystem uses and challenges (systems-based, cost-benefit, ecosystem services, etc.); measuring or predicting ecosystem change and adaptation Approaches that connect policy and management tools; harmonize national and international environmental regulation; merge human well-being with ecological management; develop and sustain the function of ecosystems; conceptualize, model and apply concepts of spatial and regional sustainability Assessment and management frameworks that incorporate conservation, life cycle, restoration, and sustainability; considerations for climate-induced adaptation, change and consequences, and vulnerability Environmental management applications using risk-based approaches; considerations for protecting and fostering biodiversity, as well as enhancement or protection of ecosystem services and resiliency.
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