Emerging polar pollutants in groundwater: Potential impact of urban stormwater infiltration practices

Pinasseau, Lucie; Wiest, Laure; Volatier, Laurence; Mermillod‐Blondin, Florian; Vulliet, Emmanuelle

doi:10.1016/j.envpol.2020.115387

Cited by 24 publications

(12 citation statements)

References 74 publications

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“…Some PPPs reached very high concentration levels. The most extreme case was fluopyram, which high concentrations corroborate earlier findings from the study area (Spycher et al, 2018) but are way beyond what has been reported in the limited literature reporting fluopyram concentrations (Sjerps et al, 2019;Pinasseau et al, 2020). What the grab sampling though clearly demonstrated was the occurrence of fluopyram in the entire length of the open stream and in several tile drains.…”

Section: Surface Watersupporting

confidence: 85%

Continuous high-frequency pesticide monitoring in a small tile-drained agricultural stream to reveal diel concentration fluctuations in dry periods

et al. 2023

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Plant Protection Products (PPPs) pose a threat to surface water quality worldwide. While small streams compose the majority of the stream lengths and are crucial for biodiversity, their exposure patterns to PPPs and transformation products (TPs) are largely understudied in dry periods. This knowledge gap can lead to ineffective monitoring strategies for addressing water quality issues. Here, we focus on two extended dry periods the in-depth analysis of a unique continuous high-frequency (20 min) concentrations dataset for 60 PPPs and TPs. The dataset refers to the monitoring of a small tile-drained agricultural stream over 41 days from May to July in 2019. The overall 2560 concentration data per compound obtained with the on-site mass spectrometer MS2Field platform revealed: (i) surprisingly high maximum concentrations (hundreds to thousands ng/l for some compounds) over extended periods of time, (ii) novel diel fluctuations of concentrations in the order of hundreds of ng/l for some PPPs and TPs, (iii) unexpected high concentrations (up to 220 ng/l) of a legacy compound (the fungicide oxadixyl withdrawn from the Swiss market in 2005). We hypothesized the cause of our findings was rooted in high PPPs levels in the shallow groundwater. To investigate this, we complemented our measurements with the long-term Swiss national monitoring program integrating samples over 14 days at the same location. The continuous long-term measurements found a few PPPs all year-round, thus indicating the presence of persistent contamination sources in the catchment. Next, we collected spatially distributed grab samples in tile drain outlets and stream water on a dry summer day in 2020. The dry-day campaign not only confirmed our hypothesis given the measured high concentrations of PPPs and TPs in tile drain outlets but also highlighted large spatial variability in measured concentrations along the stream. Hereafter, we highlight the questions that different monitoring schemes can answer in dry conditions. This information was relevant to observe for the first time, and thus foresee, the dynamic patterns of PPPs and TPs in the aquatic ecosystem in dry summer conditions, with the latter generally becoming more frequent due to climate change.

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Section: Surface Watersupporting

confidence: 85%

Continuous high-frequency pesticide monitoring in a small tile-drained agricultural stream to reveal diel concentration fluctuations in dry periods

et al. 2023

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“…Global climate change and increased urbanization are expected to heighten the threat of stormwater runoff contamination because of increases in the intensity of storm events and growth of urban impervious surface area. , Stormwater runoff is also a concern at military and industrial facilities because of the potential transport of contaminants off-site and recontamination of sediments following remediation efforts . The potential to augment drinking water supplies with urban stormwater runoff through managed aquifer recharge has also received increased attention in arid regions, though this recharge is dependent on improving water quality to avoid introducing contaminants into drinking water aquifers . Effective and efficient treatment of stormwater runoff entering receiving waters and underground aquifers is therefore necessary for both protection of human and aquatic health and augmentation of urban water supplies.…”

Section: Introductionmentioning

confidence: 99%

Black Carbon-Amended Engineered Media Filters for Improved Treatment of Stormwater Runoff

et al. 2022

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Urban stormwater runoff is a significant driver of surface water quality impairment. Recently, attention has been drawn to potential beneficial use of urban stormwater runoff, including augmenting drinking water supply in water-stressed areas. However, beneficial use relies on improved treatment of stormwater runoff to remove mobile dissolved metals and trace organic contaminants (TrOCs). This study assesses six engineered media mixtures consisting of sand, zeolite, high-temperature gasification biochar, and regenerated activated carbon (RAC) for removing a suite of co-contaminants comprising five metals, three herbicides, four pesticides, a corrosion inhibitor, six per-and polyfluoroalkyl substances (PFASs), five polychlorinated biphenyls (PCBs), and six polycyclic aromatic hydrocarbons (PAHs). This long-term laboratory-scale column study uses a novel approach to generate reproducible synthetic stormwater that incorporates catch basin material and straw-derived dissolved organic carbon. Higher flow conditions (20 cm hr −1 ), larger sized media (0.42−1.68 mm), and downflow configuration with outlet control increase the relevance of this study to better enable implementation in the field. Biochar-and RAC-amended engineered media filters removed nearly all of the TrOCs in the effluent over the course of three months of continuous flow (480 empty bed volumes), while sample ports spaced at 25% and 50% along the column depth provide windows to observe contaminant transport. Biochar provided greater benefit to TrOC removal than RAC on a mass basis. This study used relatively high concentrations of contaminants and low biochar and RAC content to observe contaminant transport. Performance in the field is likely to be significantly better with higher biochar-and RACcontent filters and lower ambient stormwater contaminant concentrations. This study provides proof-of-concept for biochar-and RAC-amended engineered media filters operated at a flow rate of 20 cm hr −1 for removing dissolved TrOCs and metals and offers insights on the performance of biochar and RAC for improved stormwater treatment and field trials.

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“…Cfb. In this climatology, the retention of contaminants [140,141] such as hydrocarbons [142] and heavy metals [143] or bacterial contamination [144] has also been proven, although not all contaminants behave in the same way; some are not retained in high concentrations [145,146], and components such as carbendazim, diuron, fluopyram, imidacloprid, and lamotrigine reach the groundwater [147]. The use of vegetation such as Phalaris arundinacea and Typha latifolia can absorb or modify the mobility of heavy metals [148].…”

Section: Regulation Services: Biodiversitymentioning

confidence: 97%

Scientific Evidence behind the Ecosystem Services Provided by Sustainable Urban Drainage Systems

García

Cerezal

2022

Land

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Urban green infrastructure such as sustainable urban drainage systems are potential providers of ecosystem services. This paper reviews the field studies that empirically verify the potential benefits of SUDS. The cultural, provisioning, supporting, and regulating ecosystem services investigated in real cases have been studied and classified according to climatology (except for the control of urban hydrology, which has been widely corroborated). Although successful cases of runoff decontamination are numerous, there is heterogeneity in the results of the systems beyond those associated with climatic differences. The other ecosystem services have not been as widely studied, giving very variable and even negative results in some cases such as climate change control (in some instances, these techniques can emit greenhouse gases). Installations in temperate climates are, by far, the most studied. These services derive from the biological processes developed in green infrastructure and they depend on climate, so it would be advisable to carry out specific studies that could serve as the basis for a design that optimizes potential ecosystem services, avoiding possible disservices.

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Emerging polar pollutants in groundwater: Potential impact of urban stormwater infiltration practices

Abstract: Capsule: The fate of 16 polar and semi-polar pesticides and pharmaceuticals in groundwater upstream and downstream of stormwater infiltration systems (SIS) was studied.

Cited by 24 publications

References 74 publications

Continuous high-frequency pesticide monitoring in a small tile-drained agricultural stream to reveal diel concentration fluctuations in dry periods

Continuous high-frequency pesticide monitoring in a small tile-drained agricultural stream to reveal diel concentration fluctuations in dry periods

Black Carbon-Amended Engineered Media Filters for Improved Treatment of Stormwater Runoff

Scientific Evidence behind the Ecosystem Services Provided by Sustainable Urban Drainage Systems

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