Interactions with freshwater biofilms cause rapid removal of common herbicides through degradation – evidence from microcosm studies

Bighiu, Maria Alexandra; Goedkoop, Willem

doi:10.1039/d0em00394h

Cited by 10 publications

(4 citation statements)

References 37 publications

(38 reference statements)

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“…The thermometer symbol indicates an effect related to temperature only, whereas the symbols of the thermometer and of the chemical together indicate a combined effect of both. (1) Bighiu & Goedkoop ( 2021 ), (2) Zeng et al ( 2014 ), (3) Zamarreňo et al ( 2009 ), (4) Höfle ( 1979 ), (5) White et al ( 1991 ), (6) Berthelot et al ( 2019 ), (7) Hayes et al ( 2019 ), (8) Klausmeier et al ( 2004 ), (9) Duarte et al ( 2013 ), (10) Donnelly et al ( 1990 ), (11) Stelzer et al ( 2003 ), (12) Fernandes et al ( 2012 ), (13) Phillips et al ( 2017 ), (14) Kaushik and Hynes ( 1971 ), (15) Pomeroy and Wiebe ( 1988 ), (16) Delnat et al ( 2021 ), (17) Wickham et al ( 2020 ), and (18) Arias Font et al ( 2021 )…”

Section: Resultsmentioning

confidence: 99%

Combined effects of heatwaves and micropollutants on freshwater ecosystems: Towards an integrated assessment of extreme events in multiple stressors research

Polazzo

Roth

Hermann

et al. 2021

Global Change Biology

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Freshwater ecosystems are strongly influenced by weather extremes such as heatwaves (HWs), which are predicted to increase in frequency and magnitude in the future. In addition to these climate extremes, the freshwater realm is impacted by the exposure to various classes of chemicals emitted by anthropogenic activities. Currently, there is limited knowledge on how the combined exposure to HWs and chemicals affects the structure and functioning of freshwater ecosystems. Here, we review the available literature describing the single and combined effects of HWs and chemicals on different levels of biological organization, to obtain a holistic view of their potential interactive effects. We only found a few studies (13 out of the 61 studies included in this review) that investigated the biological effects of HWs in combination with chemical pollution. The reported interactive effects of HWs and chemicals varied largely not only within the different trophic levels but also depending on the studied endpoints for populations or individuals. Hence, owing also to the little number of studies available, no consistent interactive effects could be highlighted at any level of biological organization. Moreover, we found an imbalance towards single species and population experiments, with only five studies using a multitrophic approach. This results in a knowledge gap for relevant community and ecosystem level endpoints, which prevents the exploration of important indirect effects that can compromise food web stability. Moreover, this knowledge gap impairs the validity of chemical risk assessments and our ability to protect ecosystems. Finally, we highlight the urgency of integrating extreme events into multiple stressors studies and provide specific recommendations to guide further experimental research in this regard.

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Section: Resultsmentioning

confidence: 99%

Combined effects of heatwaves and micropollutants on freshwater ecosystems: Towards an integrated assessment of extreme events in multiple stressors research

Polazzo

Roth

Hermann

et al. 2021

Global Change Biology

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“…The PFAS attenuation between sites DS1 and DS2 was not likely due to dilution from additional surface water or groundwater input as streamflow was observed to be decreasing through this stream section (Table S3) and has been documented to be a losing reach during base-flow conditions. , Thus, this decrease in PFAS concentration between DS1 and DS2 was likely due to other potential attenuation processes such as sorption to sediment and biodegradation via biofilms. Previous research has documented that biofilms can rapidly degrade organic contaminants in surface waters …”

Section: Resultsmentioning

confidence: 99%

“…Previous research has documented that biofilms can rapidly degrade organic contaminants in surface waters. 64 Temporal Distribution. Seven of 10 basins with available flow information and corresponding PFAS detections in at least one of the temporal samples collected (Table S3) provided preliminary evidence of an inverse relation between PFAS and streamflow, with six of these sites having PFAS detected only in the sample where the lowest flow was observed (Table S3).…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

A Comprehensive Statewide Spatiotemporal Stream Assessment of Per- and Polyfluoroalkyl Substances (PFAS) in an Agricultural Region of the United States

Kolpin

Hubbard

Cwiertny

et al. 2021

Environ. Sci. Technol. Lett.

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Public concern regarding per- and polyfluoroalkyl substances (PFAS) has grown substantially in recent years. In addition, research has documented multiple potential agriculture-related release pathways for PFAS (e.g., biosolids and livestock manure). Nevertheless, little research on the environmental prevalence of PFAS has been conducted in agricultural regions of the United States. To fill this gap, we conducted the first statewide spatiotemporal assessment of PFAS in Iowa streams across a region of intense agricultural activity. At least one PFAS was detected at 19 of the 60 stream sites sampled (32%) with 10 different PFAS detected statewide. The number of PFAS detected in the stream samples ranged from one to nine. While PFAS were detected in agricultural streams, sites with the most PFAS detected and in the highest concentration were small, effluent-affected streams where wastewater treatment plant discharge is driving stream PFAS concentrations. No individual PFAS had an exposure:activity ratio (EAR) of >1.0 (exposure concentration shown to trigger observed adverse biological activity). Five stream locations, however, had at least one EAR of >0.001, a precautionary effect screening threshold. Additional targeted temporal sampling would be beneficial to specifically capture potential agricultural source applications and corresponding runoff conditions to fully characterize the prevalence of PFAS in such agricultural systems.

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“…They flourish in nutrientrich wastewater in various morphological features, such as unicellular, filamentous, or colonial forms, forming a mat-like structure [38][39][40][41][42]. Despite being an efficient global sink for atmospheric carbon through the photosynthetic process and natural nitrogen fixation they are also utilized as bio-agents for aquatic pollutant removal [43][44][45][46]. Recently, it has been reported that cyanobacterial growth significantly ameliorates the negative effects of herbicides and pesticides [47] in aquatic and terrestrial ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Current Issues and Developments in Cyanobacteria-Derived Biofuel as a Potential Source of Energy for Sustainable Future

Singh,

Kaushalendra,

Verma

et al. 2023

Sustainability

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Biofuel production using cyanobacteria aims to maintain the sustainability of an ecosystem with minimum impact on the environment, unlike fossil fuels, which cause havoc on the environment. The application of biofuel as an alternative energy source will not only help in maintaining a clean environment and improving air quality but also decrease harmful organic matter content from aquatic bodies. Cyanobacteria are valuable sources of many novel bioactive compounds, such as lipids and natural dyes, with potential commercial implications. One of the advantages of cyanobacteria is that their biochemical constituents can be modified by altering the source of nutrients and growth conditions. Careful changes in growth media and environmental conditions altering the quality and quantity of the biochemicals and yield capacity have been discussed and analyzed. In the present review, the challenges and successes achieved to date in the commercial production of biofuel and its application in the transportation industry are discussed. The authors also focus on different types of feedstocks obtained from biomass, especially from cyanobacterial species. This review also discusses the selection of appropriate cyanobacterial species with merits and demerits in the post-harvesting process. In sum, the current review provides insight into the use of organic bioresources to maintain a sustainable environment.

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Interactions with freshwater biofilms cause rapid removal of common herbicides through degradation – evidence from microcosm studies

Abstract: We found that biofilms drive the removal of bentazone, metazachlor and metribuzin from water through rapid mineralization of these herbicides, rather than by their sorption and accumulation.

Cited by 10 publications

References 37 publications

Combined effects of heatwaves and micropollutants on freshwater ecosystems: Towards an integrated assessment of extreme events in multiple stressors research

Combined effects of heatwaves and micropollutants on freshwater ecosystems: Towards an integrated assessment of extreme events in multiple stressors research

A Comprehensive Statewide Spatiotemporal Stream Assessment of Per- and Polyfluoroalkyl Substances (PFAS) in an Agricultural Region of the United States

Current Issues and Developments in Cyanobacteria-Derived Biofuel as a Potential Source of Energy for Sustainable Future

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