Non-hazardous pesticide concentrations in surface waters: An integrated approach simulating application thresholds and resulting farm income effects

Bannwarth, M.A.; Grovermann, Christian; Schreinemachers, Pepijn; Ingwersen, Joachim; Lamers, Marc; Berger, T.; Streck, Thilo

doi:10.1016/j.jenvman.2014.12.001

Cited by 13 publications

(5 citation statements)

References 37 publications

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“…The number of SWAT applications is extensive (Table SA2), as is their diversity [32]. Pesticide-related studies include the simulation of pesticide transport and fate [35,[47][48][49][50], comparison of best management practices [51][52][53], land use change analysis [42] and climate change research [54]. These studies illustrate that SWAT is a useful and versatile tool for pesticide simulations for large-scale watersheds.…”

Section: Soil and Water Assessment Toolmentioning

confidence: 99%

“…To cope with this, the authors recommended varying the date of application throughout the basin. Alternatively, pesticide application rate (AR) and timing can be considered as calibration parameters [47,48]. A second challenge is to obtain pesticide concentration data [42,51].…”

Section: Soil and Water Assessment Toolmentioning

confidence: 99%

“…These challenges explain why, at the moment, the applications are almost completely concentrated in developed countries. Only seven pesticide applications in developing countries were found, simulating pesticide fate in small watersheds [47,48,[55][56][57][58][59]. Table 1 provides an overview of the used model input data.…”

Section: Soil and Water Assessment Toolmentioning

confidence: 99%

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Using the Soil and Water Assessment Tool to Simulate the Pesticide Dynamics in the Data Scarce Guayas River Basin, Ecuador

Cambien

Gobeyn

Nolivos

et al. 2020

Water

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Agricultural intensification has stimulated the economy in the Guayas River basin in Ecuador, but also affected several ecosystems. The increased use of pesticides poses a serious threat to the freshwater ecosystem, which urgently calls for an improved knowledge about the impact of pesticide practices in this study area. Several studies have shown that models can be appropriate tools to simulate pesticide dynamics in order to obtain this knowledge. This study tested the suitability of the Soil and Water Assessment Tool (SWAT) to simulate the dynamics of two different pesticides in the data scarce Guayas River basin. First, we set up, calibrated and validated the model using the streamflow data. Subsequently, we set up the model for the simulation of the selected pesticides (i.e., pendimethalin and fenpropimorph). While the hydrology was represented soundly by the model considering the data scare conditions, the simulation of the pesticides should be taken with care due to uncertainties behind essential drivers, e.g., application rates. Among the insights obtained from the pesticide simulations are the identification of critical zones for prioritisation, the dominant areas of pesticide sources and the impact of the different land uses. SWAT has been evaluated to be a suitable tool to investigate the impact of pesticide use under data scarcity in the Guayas River basin. The strengths of SWAT are its semi-distributed structure, availability of extensive online documentation, internal pesticide databases and user support while the limitations are high data requirements, time-intensive model development and challenging streamflow calibration. The results can also be helpful to design future water quality monitoring strategies. However, for future studies, we highly recommend extended monitoring of pesticide concentrations and sediment loads. Moreover, to substantially improve the model performance, the availability of better input data is needed such as higher resolution soil maps, more accurate pesticide application rate and actual land management programs. Provided that key suggestions for further improvement are considered, the model is valuable for applications in river ecosystem management of the Guayas River basin.

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Section: Soil and Water Assessment Toolmentioning

confidence: 99%

Section: Soil and Water Assessment Toolmentioning

confidence: 99%

Section: Soil and Water Assessment Toolmentioning

confidence: 99%

See 1 more Smart Citation

Using the Soil and Water Assessment Tool to Simulate the Pesticide Dynamics in the Data Scarce Guayas River Basin, Ecuador

Cambien

Gobeyn

Nolivos

et al. 2020

Water

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“…Bannwarth et al [123] coupled the SWAT and the Mathematical Programming-based Multi-Agent Systems (MPMAS) models to study the effects of pesticide application rates on farm household income. The results show that SWAT reproduced the observed dynamics of cypermethrin and chlorothalonil loads satisfactorily in the calibration periods, with NSE values of 0.7 and 0.67, respectively.…”

Section: Swat Studies On Water Qualitymentioning

confidence: 99%

A Review of SWAT Studies in Southeast Asia: Applications, Challenges and Future Directions

Tan

Gassman

Srinivasan

et al. 2019

Water

104

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The Soil and Water Assessment Tool (SWAT) model is recognized as one of the top hydrological models applied for addressing hydrologic and environmental issues. This is the first review on the SWAT model studies in Southeast Asia, with an emphasis on its applications, current challenges and future research directions. A total of 126 articles were identified since 2006; roughly 50% of these studies were conducted in Vietnam or Thailand. About 16% of the studies were performed at a transnational scale, which included Cambodia, Lao PDR, Thailand, and Vietnam. Model capability assessment, land use, and climate change assessment are the main SWAT applications that have been reported for the region. Most of the SWAT calibration and validation results for these studies were classified as satisfactory to very good results based on widely recognized performance indicators. However, the parameterization, calibration and validation procedures are not well reported in some articles. Availability of reliable data is one of the main problems that SWAT users are confronted with, as these data are either not freely available or restricted from public access in some countries. Hence, future studies should be considered on identification and development of reliable input data for SWAT modeling. SWAT model modification based on the SEA climate, geographical and land use conditions is another research direction to be considered in the future. Moreover, application of SWAT for extreme events simulation requires more attention in this region.

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“…The explosive growth of the earth’s population in recent years has made the use of pesticides inevitable, which poses a significant challenge for water quality control. Pesticides and their degradation products rise considerable environmental crises because the polluted water and soil can cause chronic poisoning of humans, animals, and plants. − For instance, thiabendazole is a fungicide widely used to sustain the quality of crops, vegetables, and fruits. Its residues could stay in the environment for a long time and leads to a diverse range of negative effects on human health. − Evidently, sensitive techniques that unambiguously identify the pollute are essential for effective water quality control. − In order to examine the robustness of our approach for the analysis of real-world complex mixtures, water taken from the Huangpu River in Shanghai was contaminated with varying amounts of thiabendazole.…”

Section: Results and Discussionmentioning

confidence: 99%

Toward Nanomolar Multi-Component Analysis by ¹⁹F NMR

Wen

Meng

et al. 2022

Anal. Chem.

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The widespread application of nuclear magnetic resonance (NMR) spectroscopy in detection is currently hampered by its inherently low sensitivity and complications resulting from the undesired signal overlap. Here, we report a detection scheme to address these challenges, where analytes are recognized by 19 Flabeled probes to induce characteristic shifts of 19 F resonances that can be used as "chromatographic" signatures to pin down each lowconcentration analyte in complex mixtures. This unique signal transduction mechanism allows detection sensitivity to be enhanced by using massive chemically equivalent 19 F atoms, which was achieved through the proper installation of nonafluorotert-butoxy groups on probes of high structural symmetry. It is revealed that the binding of an analyte to the probe can be sensed by as many as 72 chemically equivalent 19 F atoms, allowing the quantification of analytes at nanomolar concentrations to be routinely performed by NMR. Applications on the detection of trace amounts of prohibited drug molecules and water contaminants were demonstrated. The high sensitivity and robust resolving ability of this approach represent a first step toward extending the application of NMR to scenarios that are now governed by chromatographic and mass spectrometry techniques. The detection scheme also makes possible the highly sensitive non-invasive multi-component analysis that is difficult to achieve by other analytical methods.

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Non-hazardous pesticide concentrations in surface waters: An integrated approach simulating application thresholds and resulting farm income effects

Cited by 13 publications

References 37 publications

Using the Soil and Water Assessment Tool to Simulate the Pesticide Dynamics in the Data Scarce Guayas River Basin, Ecuador

Using the Soil and Water Assessment Tool to Simulate the Pesticide Dynamics in the Data Scarce Guayas River Basin, Ecuador

A Review of SWAT Studies in Southeast Asia: Applications, Challenges and Future Directions

Toward Nanomolar Multi-Component Analysis by ¹⁹F NMR

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Non-hazardous pesticide concentrations in surface waters: An integrated approach simulating application thresholds and resulting farm income effects

Cited by 13 publications

References 37 publications

Using the Soil and Water Assessment Tool to Simulate the Pesticide Dynamics in the Data Scarce Guayas River Basin, Ecuador

Using the Soil and Water Assessment Tool to Simulate the Pesticide Dynamics in the Data Scarce Guayas River Basin, Ecuador

A Review of SWAT Studies in Southeast Asia: Applications, Challenges and Future Directions

Toward Nanomolar Multi-Component Analysis by 19F NMR

Contact Info

Product

Resources

About

Toward Nanomolar Multi-Component Analysis by ¹⁹F NMR