Micropollutant contamination of water and soil for two biofiltration system treating road runoff

Flanagan, Kelsey; Branchu, Philippe; Boudahmane, Lila; Caupos, Émilie; Demare, Dominique; Dúbois, Philippe; Kajeiou, Meriem; Meffray, Laurent; Partibane, Chandirane; Saad, Mohamed; Lima, Maria Vitart de Abreu; Gromaire, Marie-Christine

doi:10.17632/996zpx2ypt.1

Cited by 1 publication

(3 citation statements)

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“…DEHP concentrations measured in sediments from 15 stormwater ponds in Minnesota and a sedimentation tank treating highway runoff in Gothenburg, Sweden were of the same order as those in the present study, with the Gothenburg samples corresponding to the most contaminated samples in this study. However, phthalate concentrations measured in the particulate phase of stormwater in the Paris region (DEHP from a dense urban catchment and DEHP, DBP, and DiBP concentrations from a heavily trafficked road) were distinctly higher than those in this study.…”

Section: Resultscontrasting

confidence: 88%

“…NP concentrations previously observed in sediments from a detention basin in an industrial area of Lyon, France and a stormwater tank in Gothenburg, Sweden, as well as in the particulate phase of stormwater from a dense urban catchment and a heavily trafficked road in the Paris region of France all fit within the range observed in this study. These same studies observed OP either in the same range as the present study , or at higher concentrations. , Interestingly, high concentrations of OP appear to be associated with catchments containing heavily trafficked roads, both in the scientific literature , and this study; this may be due to the presence of OP in tires, at least in the European market. By contrast, a study of sediments from 15 stormwater ponds in Minnesota observed NP more frequently (100% of samples) and at higher concentrations than the present study but never detected OP, despite lower LOQs than the present study …”

Section: Resultssupporting

confidence: 86%

“…Most previous studies analyzing phthalates in stormwater sediments and particles have detected them, ,,, with the exception of a study of stormwater pond sediments in Florida in which DBP was never detected due to a very high LOQ (a 100-fold higher than in the present study) . DEHP concentrations measured in sediments from 15 stormwater ponds in Minnesota and a sedimentation tank treating highway runoff in Gothenburg, Sweden were of the same order as those in the present study, with the Gothenburg samples corresponding to the most contaminated samples in this study.…”

Section: Resultssupporting

confidence: 55%

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Contamination of Urban Stormwater Pond Sediments: A Study of 259 Legacy and Contemporary Organic Substances

Flanagan

Blecken

Österlund

et al. 2021

Environ. Sci. Technol.

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Stormwater ponds improve water quality by facilitating the sedimentation of particles and particulate contaminants from urban runoff. Over time, this function entails the accumulation of contaminated sediments, which must be removed periodically to maintain a pond’s hydraulic and treatment capacity. In this study, sediments from 17 stormwater sedimentation facilities from four Swedish municipalities were analyzed for 259 organic substances likely to be found in the urban environment. A total of 92 substances were detected in at least one sample, while as many as 52 substances were detected in a single sample. A typical profile of urban contamination was identified, including polychlorinated biphenyls, polycyclic aromatic hydrocarbons, organotins, aliphatic hydrocarbons, phthalates, aldehydes, polybrominated diphenyl ethers, perfluorinated substances, and alkylphenols. However, levels of contamination varied greatly between ponds, influenced heavily by the dilution of urban pollutants and wear particles from other sources of particles such as eroded soil, sand, or natural organic matter. For 22 of 32 samples, the observed concentrations of at least one organic substance exceeded the regulatory threshold values derived from toxicity data for both sediment and soil.

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Section: Resultscontrasting

confidence: 88%