The Importance of Precedent Hydro-climatological Conditions for the Mass Transfer of Pollutants in Separated Sewer Systems and Corresponding Tributaries During Storm Events

Krein, Andréas; Salvia-Castellvi, M.; Iffly, Jean François; Pfister, Laurent; Hoffmann, Lucien

doi:10.1007/s11270-007-9347-7

Cited by 8 publications

(8 citation statements)

References 14 publications

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“…The wash-off effect from contaminated surfaces and the following runoff concentration and in most cases its direct discharging by channels or pipes often leads to high concentrations in urban storm water runoff (Gnecco et al 2005;Krein et al 2007;Van Metre and Mahler 2003). Moreover, eventbased and seasonal first flush effects intensify the pollutant concentrations significantly (Barco et al 2008;Deletic 1998;Lee et al 2004;Robson et al 2006;Tiefenthaler et al 2008;Wittmer et al 2010).…”

Section: State Of the Artmentioning

confidence: 99%

Concentrations of dissolved herbicides and pharmaceuticals in a small river in Luxembourg

Meyer

Pailler²,

Guignard³

et al. 2010

Environ Monit Assess

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Urban and agricultural areas affect the hydraulic patterns as well as the water quality of receiving drainage systems, especially of catchments smaller than 50 km(2). Urban runoff is prone to contamination due to pollutants like pesticides or pharmaceuticals. Agricultural areas are possible sources of nutrient and herbicide contamination for receiving water bodies. The pollution is derived from leaching by subsurface flow, as well as wash-off and erosion caused by surface runoff. In the Luxembourgish Mess River catchment, the pharmaceutical and pesticide concentrations are comparable with those detected by other authors in different river systems worldwide. Some investigated pesticide concentrations infringe current regulations. The maximum allowable concentration for diuron of 1.8 μg l( - 1) is exceeded fourfold by measured 7.41 μg l( - 1) in a flood event. The load of dissolved pesticides reaching the stream gauge is primarily determined by the amount applied to the surfaces within the catchment area. Storm water runoff from urban areas causes short-lived but high-pollutant concentrations and moderate loads, whereas moderate concentrations and high loads are representative for agricultural inputs to the drainage system. Dissolved herbicides, sulfonamides, tetracyclines, analgesics and hormones can be used as indicators to investigate runoff generation processes, including inputs from anthropogenic sources. The measurements prove that the influence of kinematic wave effects on the relationship between hydrograph and chemographs should not be neglected in smaller basins. The time lag shows that it is not possible to connect analysed substances of defined samples to the corresponding section of the hydrograph.

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Section: State Of the Artmentioning

confidence: 99%

Concentrations of dissolved herbicides and pharmaceuticals in a small river in Luxembourg

Meyer

Pailler²,

Guignard³

et al. 2010

Environ Monit Assess

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“…Eleven separate sewers in the City of Luxembourg that drain into Pétrusse have been monitored as described by Krein et al . (). Stormwater discharge of Pétrusse from urbanised areas adds up to 40% to 60% of total runoff.…”

Section: Methodsmentioning

confidence: 97%

“…A large number of the compounds under investigation reach the surface waters after having passed through municipal sewage plants (Heberer, ) or by diffuse pollution and land runoff (Hanselmann et al ., ). Separated sewer overflows are highly variable sources of untreated water during storm events (Hatt et al ., ; Krein et al ., ). Livestock feed lots are also potential sources of oestrogenic compounds from excreted hormones in manure and urine (Hanselmann et al ., ).…”

Section: State Of the Artmentioning

confidence: 97%

Concentrations and loads of dissolved xenobiotics and hormones in two small river catchments of different land use in Luxembourg

Krein¹,

Keßler

Meyer

et al. 2012

Hydrological Processes

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Abstract:The investigation focuses on the analysis of dissolved sulfonamides, tetracyclines, analgesics, anticonvulsants and hormones in surface water. Runoff event and baseflow samples were analysed in two small river catchments of different land use in Luxembourg. For most of the flood events, similar pollutant loads to those transported during 1 day with average baseflow discharge were observed. The maximum contents during flood events and the event mean concentrations are controlled by preevent hydro-climatological conditions. For all substances under investigation, maximum concentrations and event mean concentrations show a decrease with raising antecedent rainfall. In addition, the interstorm and intrastorm variability of the pollutant transport was determined. Runoff generation and corresponding transport of xenobiotic compounds show a complex pattern with many interrelated processes, taking place within bedrock, soil, anthropogenic facilities and channel and in different parts of the basins under investigation. Different sources of pollutants can be identified and related to particular locations in the basin. The influence of the sewer systems is obvious. In the agricultural Mess basin, higher rainfall amounts lead to greater quantities of laterally inflowing soil water with higher concentrations of dissolved oxytetracycline. This originates from veterinary medicines administered to livestock and enters the environment through the application of organic fertilisers, especially by slurry that is applied to the fields.

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“…In the western part, a rural environment surrounds the stream, whereas in its lower part, the Pétrusse is actually a canalized watercourse, which flows through the intensively developed city of Luxembourg. Water quality is impacted by stormwater runoff because of harmful concentrations of substances from road surfaces and rooftops (Krein et al, 2007). Some major roadways of Luxembourg City drain into the watercourse leading to elevated contaminant load of heavy metals and organic pollutants.…”

Section: Sample Locationsmentioning

confidence: 99%

Determination of Estrogen Activity in River Waters and Wastewater in Luxembourg by Chemical Analysis and the Yeast Estrogen Screen Assay

Krein¹,

Pailler²,

Guignard³

et al. 2012

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In many cases, only selected well-known target chemicals are analysed and used for a comparison with biological effects. Predicting the environmental impact of different chemical compounds does often fail. Effects are the result of mixture toxicity of single chemicals and their degraded products, which can have different biological potency and bioavailability. In vitro toxicity or mechanism-based assays are used as screening tools, prior to extended evaluation in animals or natural populations, or even prior to chemical monitoring. This study illustrates the use of the yeast bioassay to investigate the presence of compounds or chemicals with estrogenic activity in wastewater and surface water in Luxembourg and compares results with chemical measurements. Although the approach described in this paper has already been published in many case studies before, it confirms earlier findings and it delivers results for Luxembourg where similar analyses have not been documented so far. By comparison of the biological signal in the yeast assay, expressed as estrogen equivalents, with available results by liquid chromatography-mass spectrometry for steroid hormones we could only obtain a similar ranking for the majority of samples with low or high estrogenic activity. Measurements can therefore only be used as a screening tool for estrogenic activity. Seasonal changes as apparent for chemical results in surface waters were confirmed in the yeast assay. Dissolved estrone is diluted by higher discharge in the rivers during winter containing larger amounts of unpolluted soil water and groundwater runoff.

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The Importance of Precedent Hydro-climatological Conditions for the Mass Transfer of Pollutants in Separated Sewer Systems and Corresponding Tributaries During Storm Events

Cited by 8 publications

References 14 publications

Concentrations of dissolved herbicides and pharmaceuticals in a small river in Luxembourg

Concentrations of dissolved herbicides and pharmaceuticals in a small river in Luxembourg

Concentrations and loads of dissolved xenobiotics and hormones in two small river catchments of different land use in Luxembourg

Determination of Estrogen Activity in River Waters and Wastewater in Luxembourg by Chemical Analysis and the Yeast Estrogen Screen Assay

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