Analysis of river water for rice pesticides in eastern Arkansas from 2002 to 2008

Mattice, J. D.; Skulman, B. W.; Norman, Rob; Gbur, Edward E.

doi:10.2489/jswc.65.2.130

Cited by 24 publications

(8 citation statements)

References 9 publications

(8 reference statements)

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“…During the off-season, reservoir quinclorac concentrations (median 0.70 μg L −1 ) exceeded ditch concentrations (median 0.40 μg L −1 ; p < .001), but differences were small in magnitude compared with the growing season. Quinclorac has an estimated degradation half-life of 168-913 d (Lewis et al, 2016) and was persistent within the growing season in the OFWS-TWR systems monitored by Dewell and Lavy (1996) and rivers monitored by Mattice et al (2010). Therefore, it is not surprising to find quinclorac in OFWS-TWR systems during the off-season.…”

Section: Differences Between Ofws-twr Structure Typesmentioning

confidence: 99%

Residual herbicide concentrations in on‐farm water storage–tailwater recovery systems: Preliminary assessment

Grantz¹,

Leslie

Reba

et al. 2020

Agricultural & Env Letters

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On-farm water storage-tailwater recovery systems reduce groundwater usage and intercept agrochemical loads, but pesticide residue dynamics in these systems are not well understood. This study monitored concentrations of seven herbicides in seven northeast Arkansas tailwater recovery systems (April 2017-March 2018). Clomazone, glyphosate, metolachlor, and quinclorac were frequently detected, with minimal detections of 2,4-D, dicamba, and propanil. Concentrations peaked during the growing season (1 Apr.-15 Sept.), reflecting an interaction of application and precipitation. Clomazone, glyphosate, and quinclorac concentrations were greater in ditches (<0.80-67, <0.50-6.2, and <0.40-62 μg L −1 , respectively) than in the associated reservoir (<0.80-6.0, <0.50-4.1, and <0.40-6.0 μg L −1 , respectively), but metolachlor concentrations were not different between structure types (maximum 22-32 μg L −1 ). Off-season concentrations were mostly below detection, except for quinclorac. Cycling recovered tailwater through the system and irrigating from reservoirs may minimize risk of cross-crop contaminations with residual herbicides. Managed groundwater recharge should use reservoir water during winter to protect groundwater quality.Abbreviations: BMP, best management practice; MAR, managed aquifer recharge; OFWS-TWR, on-farm water storage-tailwater recovery; SPE, solid phase extraction.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Differences Between Ofws-twr Structure Typesmentioning

confidence: 99%

Residual herbicide concentrations in on‐farm water storage–tailwater recovery systems: Preliminary assessment

Grantz¹,

Leslie

Reba

et al. 2020

Agricultural & Env Letters

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“…1, is a widely used herbicide to control annual broadleaf weeds in the cultivation of rice, sugar cane and diversity of vegetable crops 1 . Environmentally, clomazone has been frequently detected in ground and surface waters as a persistent pollutant hence water contamination by clomazone is of great environmental concern 1,2 . In addition, exposure to clomazone has been proven to be detrimental to both land and aquatic lives 3,4 .…”

Section: Introductionmentioning

confidence: 99%

A comparison of adsorption equilibrium, kinetics and thermodynamics of aqueous phase clomazone between faujasite X and a natural zeolite from Kenya

Shikuku¹,

Donato²,

Kowenje³

et al. 2015

S.Afr.j.chem

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In this study, a well-studied synthetic faujasite X (FAU-X) zeolite and a recently discovered natural zeolite material from Kenya (NZ-K) were compared for their efficiency in removal of clomazone, a herbicide and water contaminant, from aqueous solution. The adsorption kinetics, isotherms and thermodynamics parameters were investigated. Equilibrium sorption data were describable by both the Langmuir and Freundlich models. The adsorption kinetics obeyed the pseudo-second-order kinetic law while pore diffusion was not the sole operating rate determining step. The derived thermodynamic parameters, namely DG and DH, indicated the adsorption process was feasible, spontaneous and exothermic for the natural zeolite and non-spontaneous for the synthetic zeolite via a physical and chemical process, respectively. The natural zeolite proved to be a suitable low-cost adsorbent for clomazone removal with removal efficiency above 70 %, five-fold more efficient than faujasite X. KEYWORDS Adsorption, natural zeolite, faujasite X, clomazone.

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“…Because of its long dissipation half‐life (28–84 days), minimal volatility (P v = 1.44 × 10 −4 mmHg), slow degradation by photolysis or hydrolysis and great water solubility (1100 mg L −1 ), this herbicide has great potential to contaminate surface and ground waters. Indeed, it is one of the most frequently detected herbicides in water sampled in rice‐growing areas, with reported concentrations > 3.7 μg L −1 (e.g. Marchesan et al …”

Section: Introductionmentioning

confidence: 99%

How the environmental fate of clomazone in rice fields is influenced by amendment with olive‐mill waste under different regimes of irrigation and tillage

Fernández

Gómez

Albarrán

et al. 2019

Pest Management Science

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BACKGROUND Irrigation and tillage systems alone or in combination with organic amendments can strongly influence soil properties, which in turn may also modify the environmental fate of any pesticides applied. This study was aimed at determining how amendment with composted olive‐mill waste (W) influenced leaching, sorption, and persistence of the herbicide clomazone in rice field soils under different tillage and irrigation management practices. The field trial conducted covered 3 years in succession, with six treatments: irrigation by sprinkler and conventional tillage without (ST) or with W application (80 Mg ha−1) (STW), irrigation by sprinkler but no tillage (SNT), irrigation by sprinkler but no tillage with W application (SNTW), and continuous flooding irrigation and tillage without (FT) and with W application (FTW). RESULTS Application of W significantly increased the adsorption of clomazone to soil in the first and third years. In the first year, the persistence of clomazone under aerobic (t1/2 = 33.1–36.3 days) and anaerobic incubation conditions (t1/2 = 3.43–10.8 days) decreased after W application to t1/2 values in the ranges 18.1–29.7 and 3.06–5.44 days, respectively. However, in the third year, although clomazone persistence increased significantly in SNT and ST when W was applied under both incubation conditions, it decreased significantly in FT management under anaerobic incubation conditions. The addition of W led to less leaching of clomazone, particularly for the FT case where the herbicide leaching losses were 2.8 and 2.6 times lower in the first and third years after W addition, respectively. CONCLUSIONS Using W as an organic amendment could be regarded as an invaluable strategy to reduce water contamination by clomazone in rice production, especially under traditional tillage and flooding management. © 2019 Society of Chemical Industry

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Analysis of river water for rice pesticides in eastern Arkansas from 2002 to 2008

Cited by 24 publications

References 9 publications

Residual herbicide concentrations in on‐farm water storage–tailwater recovery systems: Preliminary assessment

Residual herbicide concentrations in on‐farm water storage–tailwater recovery systems: Preliminary assessment

A comparison of adsorption equilibrium, kinetics and thermodynamics of aqueous phase clomazone between faujasite X and a natural zeolite from Kenya

How the environmental fate of clomazone in rice fields is influenced by amendment with olive‐mill waste under different regimes of irrigation and tillage

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