Modeling complexity in simulating pesticide fate in a rice paddy

Luo, Yuzhou; Spurlock, Frank; Gill, Sheryl; Goh, Kean S.

doi:10.1016/j.watres.2012.09.006

Cited by 24 publications

(13 citation statements)

References 17 publications

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“…Atmospheric pesticide contamination was observed in urban and rural areas with concentration levels from some picogram per cubic meter (pg m -3 ) to several nanogram per cubic meter (µg m -3 ) (Coscollà et al, 2013(Coscollà et al, , 2014Estellano et al, 2015;Zivan et al, 2016Zivan et al, , 2017. This contamination can be due to spray drift during pesticide applications (about 15 to 40%;Sinfort et al, 2009;Yates et al, 2015;Zivan et al, 2016Zivan et al, , 2017, post-application volatilization from treated plants (Zivan et al, 2016(Zivan et al, ,2017, soil (White et al, 2006) or aquatic surfaces (Luo et al, 2012) (about 0.1 to several dozen %; Lichiheb et al, 2015), and wind erosion (Glotfelty et al, 1989).…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous atmospheric degradation of pesticides by ozone: Influence of relative humidity and particle type

Mattei

Wortham

Quivet

2018

Science of The Total Environment

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In the atmosphere pesticides can be adsorbed on the surface of particles, depending on their physico-chemical properties. They can react with atmospheric oxidants such as ozone but parameters influencing the degradation kinetics are not clear enough. In this study the heterogeneous ozonolysis of eight commonly used pesticides (i.e., difenoconazole, tetraconazole, cyprodinil, fipronil, oxadiazon, pendimethalin, deltamethrin, and permethrin) adsorbed on hydrophobic and hydrophilic silicas, and Arizona dust at relative humidity ranging from 0% to 80% was investigated. Under experimental conditions, only cyprodinil, deltamethrin, permethrin and pendimethalin were degraded by ozone. Second-order kinetic constants calculated for the pesticides degraded by ozone ranged from (4.7 ± 0.4) × 10 cm molecule s (pendimethalin, hydrophobic silica, 55% RH) to (2.3 ± 0.4) × 10 cm molecule s (cyprodinil, Arizona dust, 0% RH). Results obtained can contribute to a better understanding of the atmospheric fate of pesticides in the particulate phase and show the importance of taking humidity and particle type into account for the determination of pesticides atmospheric half-lives.

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Section: Introductionmentioning

confidence: 99%

Heterogeneous atmospheric degradation of pesticides by ozone: Influence of relative humidity and particle type

Mattei

Wortham

Quivet

2018

Science of The Total Environment

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“…for tropical conditions. Luo et al . used a component‐based modelling system to simulate the fate of five pesticides in rice fields in the USA.…”

Section: Discussionmentioning

confidence: 99%

“…50 The fast degradation rate recorded in the present study is in line with results presented by Sethunathan, 51 Matsumura 52 and Racke et al 53 for tropical conditions. Luo et al 54 used a componentbased modelling system to simulate the fate of five pesticides in rice fields in the USA. Using the registrant-submitted dissipation half-lives, the base model estimated pesticide concentrations in paddy water within one order of magnitude of measured data.…”

Section: Discussionmentioning

confidence: 99%

Modelling the fate of pesticides in paddy rice-fish pond farming systems in northern Vietnam

Lamers

Nguyen

et al. 2013

Pest. Manag. Sci.

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“…While in the aquifer the pesticides usually has a longer half life than in surface soil, as there were less microbes and lack the appropriate condition for chemical process, while on the other hand, the pollutants can easily trans with the flow of groundwater. Intensive pesticide use may result in frequent surface and ground water detections adjacent to rice cultivated region [21]. In the non-pounded rice paddy field, with a flood irrigation way, the herbicide extremely easy to leaching into the shallow aquifer with the large quantity of deep percolation water.…”

Section: E Model Validationmentioning

confidence: 99%

Assessment of Groundwater Potential Risk by Agricultural Activities, in North Italy

Zhang¹,

Maio²,

Suozzi³

2013

IJESD

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Abstract-The goal of this study was to use GIS technology to develop maps of relative groundwater risk from agriculture activity in Vercelli plain. SINTACS will be connected with a IPA Meanwhile, agricultural chemical compounds concentration, compiled from domestic wells throughout the study area will be use to calibration the index model. SINTACS model was used to determine the instinct vulnerability of the groundwater shows that most of the Vercelli plain's groundwater is at high to very high risk in terms of pollution potential. Sensitivity analysis was employed to figure out the acutely importance of the single data layer.Index Terms-Groundwater, agriculture, GIS, index model.

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Modeling complexity in simulating pesticide fate in a rice paddy

Cited by 24 publications

References 17 publications

Heterogeneous atmospheric degradation of pesticides by ozone: Influence of relative humidity and particle type

Heterogeneous atmospheric degradation of pesticides by ozone: Influence of relative humidity and particle type

Modelling the fate of pesticides in paddy rice-fish pond farming systems in northern Vietnam

Assessment of Groundwater Potential Risk by Agricultural Activities, in North Italy

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