Sorption of Nine Pesticides to Three Aquatic Macrophytes

Crum, S.J.H.; Kammen-Polman, A. M. M. van; Leistra, M.

doi:10.1007/s002449900519

Cited by 49 publications

(39 citation statements)

References 12 publications

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“…The relative efficiency of these sorption substrates, which is represented by the sorption coefficient (K f ), varies among pesticides. Figure 3 compiles the mean K f values for various pesticides, fitted from sorption experiments on wetland plants, ditch sediments, and litter (Crum et al 1999;Garon-Boucher 2003;Gebremariam et al 2012;Passeport et al 2011a;Vallée et al 2014).…”

Section: Pesticide Retention In Ditchesmentioning

confidence: 99%

Managing ditches for agroecological engineering of landscape. A review

Dollinger¹,

Dagès²,

Bailly

et al. 2015

Agron. Sustain. Dev.

115

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Agriculture must now feed the planet with the lowest environmental impact. Landscape management is a means to protect natural resources from the adverse impacts. In particular, the adequate management of ditches could improve crop quality. Here, we review ditch design and maintenance. We found the following major points: (1) ditch networks have been primarily designed for waterlogging control and erosion prevention. Nonetheless, when properly managed, farm ditches provide other important ecosystem services, namely groundwater recharge, flood attenuation, water purification, or biodiversity conservation. (2) All ditch ecosystem services depend on many geochemical, geophysical, and biological processes, whose occurrence and intensity vary largely with ditch characteristics. (3) The major ruling characteristics are vegetative cover; ditch morphology; slope orientation; reach connections such as piped sections and weirs, soil, sediment and litter properties, biota, and biofilms; and network topology. (4) Ditch maintenance is an efficient engineering tool to optimize ecosystem services because several ditch characteristics change widely with ditch maintenance. For instance, maintenance operations, dredging, chemical weeding, and burning improve waterlogging and soil erosion control, but they are negative for biodiversity conservation. Mowing has low adverse effects on biodiversity conservation and water purification when mowing is performed at an adequate season. The effects of burning have been poorly investigated.

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Section: Pesticide Retention In Ditchesmentioning

confidence: 99%

Managing ditches for agroecological engineering of landscape. A review

Dollinger¹,

Dagès²,

Bailly

et al. 2015

Agron. Sustain. Dev.

115

View full text Add to dashboard Cite

show abstract

“…For example, macrophytes can sorb insecticides, potentially reducing the duration and intensity of exposure experienced by aquatic taxa [18,19]. In fact, submersed macrophytes can sorb up to 90% of insecticides from the water column within 24 h, but such high sorption rates only occur for highly lipophilic compounds (i.e., Log octanolwater partition coefficient, K OW > 6.0), such as organochlorine (e.g., dichlorodiphenyltrichloroethane [DDT]) and pyrethroid (e.g., lambda-cyhalothrin) insecticides [20,21].…”

Section: Introductionmentioning

confidence: 99%

Mitigating with macrophytes: Submersed plants reduce the toxicity of pesticide‐contaminated water to zooplankton

Brogan

Relyea

2013

Enviro Toxic and Chemistry

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Abstract-In ecotoxicology, appreciation is growing for the influence that ecological interactions have on the toxicity of contaminants, such as insecticides, to sensitive species. Most previous studies, however, have focused on factors that exacerbate insecticide effects on species, while factors that may mitigate these effects have been relatively ignored. In aquatic habitats, a small number of studies have shown that submersed macrophytes can remove some insecticides from the water column via sorption. Although examining sorption dynamics is important for understanding the environmental fate of insecticides, whether and to what extent macrophytes actually mitigate insecticide effects on aquatic species remains unknown. In the present study, the authors examined how much and how quickly several realistic densities of the macrophyte Elodea canadensis decreased the toxicity of the insecticide malathion to Daphnia magna, a keystone aquatic herbivore. To do this, the authors quantified Daphnia survival in outdoor test systems (0.95 L) exposed to a factorial combination of five Elodea densities crossed with five malathion concentrations. The authors discovered that malathion's lethality to Daphnia decreased with increasing Elodea density. Furthermore, the rate at which Elodea reduced malathion's toxicity in the water column increased with macrophyte density. These results provide strong evidence that submersed macrophytes can mitigate the ecological impacts of a popular insecticide and further support that ecological interactions can strongly influence contaminant environmental effects. Environ. Toxicol. Chem. 2013;32:699-706. # 2012 SETAC

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“…The coefficient for adsorption of cyprodinil to macrophytes was estimated using two equations proposed by Crum et al (1999). The first equation is:…”

Section: Results and Interpretation Of Exposure Measurementsmentioning

confidence: 99%

Opinion of the Scientific Panel on Plant protection products and their residues (PPR) related to the aquatic risk assessment for cyprodinil and the use of a mesocosm study in particular

2006

EFSA Journal

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of 77However, the background of the question also raised the issue of which assessment factor should be applied to the mesocosm result. The PPR Panel suggests that the data available in this case have reduced the uncertainty to a considerable extent and thus allow the reduction of such an assessment factor. However, some uncertainties remain. It also notes that the Annex VI assessment factors are meant to cover the uncertainties of biological origin while uncertainties on exposure (see Background, uncertainties regarding influence of environmental conditions on exposure) should be dealt with by other means, e.g. sensitivity analyses of exposure estimates or probabilistic exposure assessments.

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Sorption of Nine Pesticides to Three Aquatic Macrophytes

Cited by 49 publications

References 12 publications

Managing ditches for agroecological engineering of landscape. A review

Managing ditches for agroecological engineering of landscape. A review

Mitigating with macrophytes: Submersed plants reduce the toxicity of pesticide‐contaminated water to zooplankton

Opinion of the Scientific Panel on Plant protection products and their residues (PPR) related to the aquatic risk assessment for cyprodinil and the use of a mesocosm study in particular

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