Describing the environmental fate of diuron in a tropical river catchment

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Describing the environmental fate of diuron in a tropical river catchment. / Camenzuli, Louise; Scheringer, Martin; Gaus, Caroline et al.
In: The Science of The Total Environment, Vol. 440, 01.12.2012, p. 178-185.

Research output: Journal contributionsJournal articlesResearchpeer-review

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Camenzuli L, Scheringer M, Gaus C, Ng CA, Hungerbühler K. Describing the environmental fate of diuron in a tropical river catchment. The Science of The Total Environment. 2012 Dec 1;440:178-185. doi: 10.1016/j.scitotenv.2012.07.037

Bibtex

@article{ea8d6f2a046843d1b64e9a1fb0ef42e3,
title = "Describing the environmental fate of diuron in a tropical river catchment",
abstract = "The use of the herbicide diuron on sugarcane fields along the river catchments of the Great Barrier Reef (GBR) in Australia is an issue of concern due to high levels of diuron reported in the GBR lagoon, and has recently led to a restriction on the use of diuron during the 2011/12 wet season. An important question in this context is how much diuron is mobilised from the agricultural area by strong rainfall and floods in the wet season and transferred to the GBR lagoon. We have set up a multimedia chemical fate model for a tropical catchment to describe the fate of diuron within the Tully River catchment, Queensland, Australia. The model includes highly variable rainfall based on meteorological data from the Tully River catchment and a flood water compartment on top of the agricultural soil that is present during times for which floods were reported. The model is driven by diuron application data estimated for the Tully River catchment and is solved for time-dependent diuron concentrations in agricultural soil and seawater. Model results show that on average 25% of the diuron applied every year is transferred to the GBR lagoon with rainwater and flood water runoff. Diuron concentrations estimated for the seawater range from 0.1. ng/L to 12. ng/L and are in good agreement with concentrations measured in the GBR lagoon. The uncertainty of the diuron concentrations estimated for seawater is approximately a factor of two and mainly derives from uncertainty in the diuron degradation half-life in soil, properties of the soil compartment such as organic matter content, and the speed of the seawater current removing diuron dissolved in seawater from the seawater compartment of the model. {\textcopyright} 2012 Elsevier B.V.",
keywords = "Chemistry, Diuron, Multimedia fate modelling, Pesticide, River catchment",
author = "Louise Camenzuli and Martin Scheringer and Caroline Gaus and Ng, {Carla A} and Konrad Hungerb{\"u}hler",
note = "Copyright {\textcopyright} 2012 Elsevier B.V. All rights reserved.",
year = "2012",
month = dec,
day = "1",
doi = "10.1016/j.scitotenv.2012.07.037",
language = "English",
volume = "440",
pages = "178--185",
journal = "The Science of The Total Environment",
issn = "0048-9697",
publisher = "Elsevier B.V.",

}

RIS

TY - JOUR

T1 - Describing the environmental fate of diuron in a tropical river catchment

AU - Camenzuli, Louise

AU - Scheringer, Martin

AU - Gaus, Caroline

AU - Ng, Carla A

AU - Hungerbühler, Konrad

N1 - Copyright © 2012 Elsevier B.V. All rights reserved.

PY - 2012/12/1

Y1 - 2012/12/1

N2 - The use of the herbicide diuron on sugarcane fields along the river catchments of the Great Barrier Reef (GBR) in Australia is an issue of concern due to high levels of diuron reported in the GBR lagoon, and has recently led to a restriction on the use of diuron during the 2011/12 wet season. An important question in this context is how much diuron is mobilised from the agricultural area by strong rainfall and floods in the wet season and transferred to the GBR lagoon. We have set up a multimedia chemical fate model for a tropical catchment to describe the fate of diuron within the Tully River catchment, Queensland, Australia. The model includes highly variable rainfall based on meteorological data from the Tully River catchment and a flood water compartment on top of the agricultural soil that is present during times for which floods were reported. The model is driven by diuron application data estimated for the Tully River catchment and is solved for time-dependent diuron concentrations in agricultural soil and seawater. Model results show that on average 25% of the diuron applied every year is transferred to the GBR lagoon with rainwater and flood water runoff. Diuron concentrations estimated for the seawater range from 0.1. ng/L to 12. ng/L and are in good agreement with concentrations measured in the GBR lagoon. The uncertainty of the diuron concentrations estimated for seawater is approximately a factor of two and mainly derives from uncertainty in the diuron degradation half-life in soil, properties of the soil compartment such as organic matter content, and the speed of the seawater current removing diuron dissolved in seawater from the seawater compartment of the model. © 2012 Elsevier B.V.

AB - The use of the herbicide diuron on sugarcane fields along the river catchments of the Great Barrier Reef (GBR) in Australia is an issue of concern due to high levels of diuron reported in the GBR lagoon, and has recently led to a restriction on the use of diuron during the 2011/12 wet season. An important question in this context is how much diuron is mobilised from the agricultural area by strong rainfall and floods in the wet season and transferred to the GBR lagoon. We have set up a multimedia chemical fate model for a tropical catchment to describe the fate of diuron within the Tully River catchment, Queensland, Australia. The model includes highly variable rainfall based on meteorological data from the Tully River catchment and a flood water compartment on top of the agricultural soil that is present during times for which floods were reported. The model is driven by diuron application data estimated for the Tully River catchment and is solved for time-dependent diuron concentrations in agricultural soil and seawater. Model results show that on average 25% of the diuron applied every year is transferred to the GBR lagoon with rainwater and flood water runoff. Diuron concentrations estimated for the seawater range from 0.1. ng/L to 12. ng/L and are in good agreement with concentrations measured in the GBR lagoon. The uncertainty of the diuron concentrations estimated for seawater is approximately a factor of two and mainly derives from uncertainty in the diuron degradation half-life in soil, properties of the soil compartment such as organic matter content, and the speed of the seawater current removing diuron dissolved in seawater from the seawater compartment of the model. © 2012 Elsevier B.V.

KW - Chemistry

KW - Diuron

KW - Multimedia fate modelling

KW - Pesticide

KW - River catchment

UR - http://www.scopus.com/inward/record.url?scp=84868686670&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/0ac3d240-990c-3914-985d-ec25ec110b47/

U2 - 10.1016/j.scitotenv.2012.07.037

DO - 10.1016/j.scitotenv.2012.07.037

M3 - Journal articles

C2 - 23026296

VL - 440

SP - 178

EP - 185

JO - The Science of The Total Environment

JF - The Science of The Total Environment

SN - 0048-9697

ER -