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Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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This study presents concentration and carbon isotope data of two herbicides from a small agricultural catchment. Herbicide concentrations at the catchment outlet were highest after intense rainfall events. The isotope data indicated herbicide degradation within 2 months after application. The system was modelled with a conceptual mathematical model using the transport formulation by travel-time distributions, which allowed testing of various assumptions of pesticide transport and degradation.
Articles | Volume 21, issue 10
Hydrol. Earth Syst. Sci., 21, 5243–5261, 2017
https://doi.org/10.5194/hess-21-5243-2017
Hydrol. Earth Syst. Sci., 21, 5243–5261, 2017
https://doi.org/10.5194/hess-21-5243-2017

Research article 18 Oct 2017

Research article | 18 Oct 2017

Pesticide fate on catchment scale: conceptual modelling of stream CSIA data

Stefanie R. Lutz et al.

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Cited articles

Abe, Y. and Hunkeler, D.: Does the Rayleigh equation apply to evaluate field isotope data in contaminant hydrogeology?, Environ. Sci. Technol., 40, 1588–1596, https://doi.org/10.1021/es051128p, 2006.
Accinelli, C., Dinelli, G., Vicari, A., and Catizone, P.: Atrazine and metolachlor degradation in subsoils, Biol. Fert. Soils, 33, 495–500, https://doi.org/10.1007/s003740100358, 2001.
Al-Khatib, K., Baumgartner Unland, J., Olson, B. L. S., and Graham, D. W.: Alachlor and metolachlor transformation pattern in corn and soil, Weed Sci., 50, 581–586, https://doi.org/10.1614/0043-1745(2002)050[0581:AAMTPI]2.0.CO;2, 2002.
Atteia, O., Franceschi, M., and Dupuy, A.: Validation of reactive model assumptions with isotope data: application to the Dover case, Environ. Sci. Technol., 42, 3289–3295, https://doi.org/10.1021/es071269m, 2008.
Barra Caracciolo, A., Giuliano, G., Grenni, P., Guzzella, L., Pozzoni, F., Bottoni, P., Fava, L., Crobe, A., Orrù, M., and Funari, E.: Degradation and leaching of the herbicides metolachlor and diuron: a case study in an area of Northern Italy, Environ. Pollut., 134, 525–534, https://doi.org/10.1016/j.envpol.2004.08.014, 2005.
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Short summary
This study presents concentration and carbon isotope data of two herbicides from a small agricultural catchment. Herbicide concentrations at the catchment outlet were highest after intense rainfall events. The isotope data indicated herbicide degradation within 2 months after application. The system was modelled with a conceptual mathematical model using the transport formulation by travel-time distributions, which allowed testing of various assumptions of pesticide transport and degradation.
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