The seasonality of nutrients and sediment in residential stormwater runoff: Implications for nutrient-sensitive waters

Smith, Janet; Winston, Ryan J.; Tirpak, R. Andrew; Wituszynski, David M.; Boening, Kathryn M.; Martin, Jay F.

doi:10.1016/j.jenvman.2020.111248

Cited by 43 publications

(14 citation statements)

References 59 publications

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“…The TSS concentrations observed here were well below the international average [25] and nearly half of those from similar catchments around Madison, Wisconsin [34,35]. These differences may be explained from the lower proportion of impervious surfaces that characterize the university grounds sampled in this study compared to the city of Madison [34,35].…”

Section: Discussioncontrasting

confidence: 51%

Quantifying Stormwater Pollutants and Porous Surface Infiltration on a Midwestern University Campus

Koffron,

Balster

2023

Preprint

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Stormwater management is especially critical for urbanized landscapes that border surface waters and therefore must be monitored accurately to meet permitting requirements and mitigate environmental impact. To assess the impact of stormwater pollutants from the university grounds of a large midwestern campus, we pursued the following two objectives. First, to empirically quantify the concentration of four pollutants in campus stormwater (total suspended solids (TSS), total phosphorus (TP), total Kjeldahl nitrogen (TKN), and chlorides (Cl-)) and compare these observations to international averages and modeled values from the Source Loading and Management Model for Windows (WinSLAMM v10.5.0), used by the university for stormwater monitoring. And second, we sought to quantify the steady state infiltration rate of two porous pavements (concrete and asphalt), and two concrete porous paver surfaces (with interlocking aggregates and without) constructed by the university to mitigate environmental impact. Results showed low TSS concentrations relative to other municipalities and modeled results. The discrepancy between modeled and empirical values is argued to arise from spatial and temporal constraints of sampling. Conversely, concentrations of TP, TKN, and Cl-, were at similar levels to reference areas and WinSLAMM, with TP and TKN likely sourced from mainly organic, non-particulate sources (e.g. leaf litter). Of the four mitigation systems, the porous pavers with aggregates had the highest infiltration rate compared to the other three porous pavements, although compounding factors such as age and landcover may have influenced performance differences.

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Section: Discussioncontrasting

confidence: 51%

Quantifying Stormwater Pollutants and Porous Surface Infiltration on a Midwestern University Campus

Koffron,

Balster

2023

Preprint

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“…When peak rainfall occurs in July and August, the residual pollutants on the surface are reduced, resulting in a lower concentration. Previous studies have also shown that the concentration of pollutants is related to rainfall duration (Wang et al 2013 ), rainfall intensity (Ma et al 2018 ), seasonal changes (Smith et al 2020 ), and the accumulation of surface pollutants (Zhang et al 2017 ). In addition, this study calculated the rainfall from 2014 to 2017 and calculated the loads of NO 3 - -N and Pb in the runoff in the corresponding years by using the product of the daily average concentration of the pollutants per unit area and daily runoff as the pollutant load.…”

Section: Resultsmentioning

confidence: 97%

The migration and accumulation of typical pollutants in the growing media layer of bioretention facilities

Gong

Xie

et al. 2023

Environ Sci Pollut Res

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A series of complex physical and chemical processes, such as interception, migration, accumulation, and transformation, can occur when pollutants in stormwater runoff enter the growing media layer of bioretention facilities, affecting the purification of stormwater runoff by bioretention facilities. The migration and accumulation of pollutants in the growing media layer need long-term monitoring in traditional experimental studies. In this study, we established the Hydrus-1D model of water and solution transport for the bioretention facilities. By analyzing the variation of cumulative fluxes of NO 3 - -N and Pb with time and depth, we investigated pollutant migration and accumulation trends in the growing media layer of bioretention facilities. It can provide support for reducing runoff pollutants in bioretention facilities. The Hydrus-1D model was calibrated and verified with experimental data, and the input data (runoff pollutant concentration) for the pollutant concentration boundary was obtained from the SWMM model. The results demonstrated that the cumulative fluxes of NO 3 - -N and Pb increased with the passage of simulation time and depth of the growing media layer overall. From the top to the bottom of the growing media layer, the change rates of the peak cumulative fluxes of NO 3 - -N and Pb were strongly linked with their levels in the runoff. An increase in rainfall decreased the content of NO 3 - -N and Pb in the growing media layer, and this phenomenon was more obvious in the lower part of the layer. Graphical Abstract

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“…The extreme rainfall events caused by global warming will also have a great impact on water quality by affecting the thermal stratification of the reservoir. Intense rainfall-runoff is responsible for the short-term cyanobacterial blooms that occurred in many lakes or reservoirs [69][70][71]. The main result is that the water temperature of the rainstorm flood is higher than that of the reservoir bottom layer during the thermal stratification in summer.…”

Section: Effects Of Thermal Stratification On Water Quality Of Reserv...mentioning

confidence: 99%

Effects of the Long-Term Climate Change and Selective Discharge Schemes on the Thermal Stratification of a Large Deep Reservoir, Xin’anjiang Reservoir, China

Lan²,

Qin

et al. 2022

Water

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The effects of global warming and precipitation changes on water temperature and thermocline parameters, such as thermocline depth, thickness, and strength, were assessed. A catchment model, coupled with a reservoir thermal model with meteorological input calculated by a downscaled general circulation model (GCM) projection under three representative concentration pathways (RCPs), was applied to the Xin’anjiang Reservoir, located in southeast China. The results indicate that water temperature in each layer increased (decreased) with the rise (decline) in air temperature, especially the surface water temperature. There was a significant negative (positive) correlation between thermocline depth (strength) and air temperature during the period of stratification weakness. The most sensitive phenomenon of water temperature-to-precipitation changes occurred in the middle layer (depth = 30 m). Additionally, the thermocline depth and thickness increased with decreases in hydraulic residence time, which were caused by precipitation increases. According to the simulation experiments driven by RCP outputs, mean water temperature in each water layer in the future (2096–2100) has a strong response to increases in air temperature, which is projected to increase by 0.11–0.62 °C for RCP2.6, 0.76–1.19 °C for RCP4.5, and 1.50–2.35 °C for RCP8.5, compared to the baseline (2012–2016). However, mean water temperature in each water layer from 2096 to 2100 underwent a slight decrease caused by precipitation changes, with a 0.03–0.25 °C decrease for RCP2.6, 0.07–0.40 °C for RCP4.5, and 0.04–0.29 °C for RCP8.5, compared to 2012–2016. The mean thermocline depth in the future (2096–2100) will be significantly decreased, while the mean thermocline thickness will be slightly increased. Over a multiyear timescale, the impacts of air temperature changes are stronger than those induced by precipitation variations. However, the effects of hydraulic residence time changes caused by precipitation changes (especially rainstorm) should be considered in the management of deep reservoirs.

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The seasonality of nutrients and sediment in residential stormwater runoff: Implications for nutrient-sensitive waters

Cited by 43 publications

References 59 publications

Quantifying Stormwater Pollutants and Porous Surface Infiltration on a Midwestern University Campus

Quantifying Stormwater Pollutants and Porous Surface Infiltration on a Midwestern University Campus

The migration and accumulation of typical pollutants in the growing media layer of bioretention facilities

Effects of the Long-Term Climate Change and Selective Discharge Schemes on the Thermal Stratification of a Large Deep Reservoir, Xin’anjiang Reservoir, China

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