Trace Metal Composition in Water and Sediment from Catch Basins

Karlsson, Kristin; Viklander, Maria

doi:10.1061/(asce)0733-9372(2008)134:10(870)

Cited by 18 publications

(13 citation statements)

References 27 publications

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“…Pond LH and sedimentation tank RS have elevated concentrations of Cr, Cu, Ni, and Zn compared to the other studied facilities which is consistent with these facilities being influenced by the highest traffic loads and implicate this as a possible pollutant source. Several studies have shown that higher metal concentrations are associated with small particles [4,45,46] and this is illustrated in this study by considering the particle size association of Zn ( Figure 4). For particles smaller than 63 μm, a linear relationship exists between the total Zn concentration in the samples and the percentage of particles in this size fraction (correlation of 0.76) even though the outlet for pond KÖ exhibited a low concentration given the high percentage of fine particles.…”

Section: Sediment Statusmentioning

confidence: 68%

Heavy metal concentrations and toxicity in water and sediment from stormwater ponds and sedimentation tanks

Karlsson

Viklander

Scholes

et al. 2010

Journal of Hazardous Materials

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138

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Sedimentation is a widely used technique in structural best management practices to remove pollutants from stormwater. However, concerns have been expressed about the environmental impacts that may be exerted by the trapped pollutants. This study has concentrated on stormwater ponds and sedimentation tanks and reports on the accumulated metal concentrations (Cd, Cr, Ni, Pb, and Zn) and the associated toxicity to the bacteria Vibrio fischeri. The metal concentrations are compared with guidelines and the toxicity results are assessed in relation to samples for which metal concentrations either exceed or conform to these values. The water phase metal concentrations were highest in the ponds whereas the sedimentation tanks exhibited a distinct decrease towards the outlet. However, none of the water samples demonstrated toxicity even though the concentrations of Cu, Pb, and Zn exceeded the threshold values for the compared guidelines. The facilities with higher traffic intensities had elevated sediment concentrations of Cr, Cu, Ni, and Zn which increased towards the outlet for the sedimentation tanks in agreement with the highest percentage of fine particles. The sediments in both treatment facilities exhibited the expected toxic responses in line with their affinity for heavy metals but the role of organic carbon content is highlighted.

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Section: Sediment Statusmentioning

confidence: 68%

Heavy metal concentrations and toxicity in water and sediment from stormwater ponds and sedimentation tanks

Karlsson

Viklander

Scholes

et al. 2010

Journal of Hazardous Materials

Self Cite

138

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“…As a consequence, the present-day Fig. 11 Trace element/Zn ratios of Skutviken sediment compared with gully pot sediment (<2,000 μm) from a housing area and road in Luleå (Karlsson and Viklander 2008b) input of pollutants to the sea are reduced. In areas with postglacial land uplift, where such bays are common, bay sediments are a potential future source of pollutants when uplift results in erosion and oxidation of the sediments.…”

Section: Discussionmentioning

confidence: 94%

“…8 Zn and As in sediment (mg kg −1 ) and Zn and As in porewater (μg l −1 ) at Skutviken and Gültzauud-den. The top value for "porewater" represents the bottom water (3 cm above sediment surface) Skutviken bay (Karlsson and Viklander 2008b). A reason for this might be that most metals, with concentrations higher in the Skutviken sediment than in the gully pots, are attached to smaller particles.…”

Section: Stormwater Impact and Possible Sources Of Contaminationmentioning

confidence: 99%

Impact of Urban Stormwater on Sediment Quality in an Enclosed Bay of the Lule River, Northern Sweden

Rentz

Widerlund

Viklander

et al. 2010

Water Air Soil Pollut

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Sediment and porewater samples from an enclosed bay receiving stormwater discharge (Skutviken) near the centre of Luleå, northern Sweden were analysed for major and trace elements and 16 polycyclic aromatic hydrocarbons (PAHs). Among the studied metals Cd, Cu, Pb and Zn were enriched at Skutviken. Also, the PAH content was enriched, in particular for phenantrene, anthracene, fluoranthene and pyrene which are regarded as common constituents in stormwater. The use of trace metal ratios provided indications about pollutant sources for the sediment. Cs-137 dating was used to determine historical changes in metal and PAH fixation in the sediment. The bay Skutviken is enclosed through the construction of a road bank since 1962. The enclosure led to reduced water circulation in the bay that promotes the occurrence of anoxic conditions with sulphate reduction within the bay. As a consequence of these conditions, metals are trapped in the sediments as sulphides. This study suggests that enclosed bays with restricted water circulation may be efficient traps for urban pollutants, reducing the present-day input of pollutants to the sea. In areas with postglacial land uplift, where such bays are common, bay sediments are a potential future source of pollutants when uplift results in erosion and oxidation of the sediments.

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“…Gully pots (catch basins) and corresponding lateral connections constitute the anterior part of the sewer infrastructure dedicated to prevent the flooding of public areas by collecting and transporting run-off from urban surfaces. In addition, gully pots are designed to capture particles suspended in run-off by gravity separation, as these particles will otherwise deposit in the downstream urban water system (Deletic, Ashley, & Rest, 2000;Karlsson & Viklander, 2008). Pollutants arising from corrosion, atmospheric deposition, vehicular wear and leaks can be attached to these deposits (Li, Lau, Kayhanian, & Stenstrom, 2005).…”

Section: Introductionmentioning

confidence: 99%

Quantifying the effect of proactive management strategies on the serviceability of gully pots and lateral sewer connections

Post

Langeveld

Clemens

2016

Structure and Infrastructure Engineering

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a faculty of civil engineering and geosciences, Section Sanitary engineering, delft university of technology, delft, the netherlands; b Partners4urbanwater, nijmegen, the netherlands; c deltares, delft, the netherlands ABSTRACT Gully pots and lateral connections represent the anterior part of the sewer infrastructure responsible for the majority of flooding events in public areas. This study provides a statistical procedure to quantify the effectiveness of proactive management strategies to improve their performance. The first part consists of non-parametric methods to determine the evolution of gully pot blockages. The second part presents a Bayesian approach to quantify the development of reported flooding events when lateral connections are subject to proactive strategies. To this end, call data were collected from areas that were maintained proactively instead of reactively. Application of the procedure revealed a significant call decrease in one area. In addition, an increasing blockage likelihood over time indicated cyclic cleaning to be effective to improve sewer serviceability. By linking management strategies to performance, this flexible procedure can support sewer managers to balance the merits of proactive and reactive management strategies.

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Trace Metal Composition in Water and Sediment from Catch Basins

Cited by 18 publications

References 27 publications

Heavy metal concentrations and toxicity in water and sediment from stormwater ponds and sedimentation tanks

Heavy metal concentrations and toxicity in water and sediment from stormwater ponds and sedimentation tanks

Impact of Urban Stormwater on Sediment Quality in an Enclosed Bay of the Lule River, Northern Sweden

Quantifying the effect of proactive management strategies on the serviceability of gully pots and lateral sewer connections

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