How does integrating multi-scale monitoring and compound-specific isotope analysis improve the evaluation of <i>S</i>-metolachlor degradation in agro-ecosystems?

Droz, Boris; Drouin, Guillaume; Lohmann, Jenna; Guyot, Benoit; Imfeld, Gwenaël; Payraudeau, Sylvain

doi:10.5194/hess-30-1291-2026

Articles | Volume 30, issue 5

https://doi.org/10.5194/hess-30-1291-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-30-1291-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 30, issue 5

Research article

|

04 Mar 2026

Research article |

| 04 Mar 2026

How does integrating multi-scale monitoring and compound-specific isotope analysis improve the evaluation of S-metolachlor degradation in agro-ecosystems?

Boris Droz, Guillaume Drouin, Jenna Lohmann, Benoit Guyot, Gwenaël Imfeld, and Sylvain Payraudeau

Supplement

https://doi.org/10.5194/hess-30-1291-2026-supplement

Data sets

Data for "How does integrating multi-scale monitoring and compound-specific isotope analysis improve the evaluation of S-metolachlor degradation in agro-ecosystems?" Boris Droz et al. https://doi.org/10.5281/zenodo.6414880

Short summary

How to evaluate pesticide persistence and degradation across an agricultural catchment to improve strategies for preserving aquatic ecosystems? By using a tracing method based on stable isotope signatures of pesticides at the catchment scale, degradation of the herbicide S-metolachlor could be distinguished from other dissipation processes. A limited number of isotopic measurements can provide critical insights for designing efficient strategies to protect aquatic ecosystems.