A Multivariate Approach to the Identification of Surrogate Parameters for Heavy Metals in Stormwater

Singh, Anjana; Ayoko, Godwin A.; Herngren, Lars F.

doi:10.1007/s11270-012-1368-1

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…Thus, while most of the TM burden is associated with anthropogenic activities, small contributions from mineral sources should be acknowledged as well, particularly in the case of Pb, Ni, Cu and Cr in peat soils (Cory et al, 2006 ; Lidman et al, 2014 ). Since TMs in stormwater/snowmelt may occur at the levels causing toxicity effects in receiving waters, they were identified as priority pollutants and potential indicators of anthropogenic inputs to natural waters (Eriksson et al, 2007 ; Singh et al, 2013 ). In the EU Water Framework Directive (WFD), the maximum allowable concentrations (MACs) were promulgated for five trace metals (Cd, Pb, Ni, Hg and Zn) to assess the environmental risks in natural waters and fisheries ( 2006 /44/EC; European Commission, 2006 ).…”

Section: Introductionmentioning

confidence: 99%

Mineral and Anthropogenic Indicator Inorganics in Urban Stormwater and Snowmelt Runoff: Sources and Mobility Patterns

Galfi

Österlund

Maršálek

et al. 2017

Water Air Soil Pollut

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Inorganic chemicals in urban stormwater and snowmelt runoff originate from catchment geology and anthropogenic activities. The occurrence, partitioning and mobility of six minerals and six trace metal (TM) indicators of anthropogenic activities were studied in stormwater, snowmelt and baseflow in four urban catchments, and the sampling of inorganics was supplemented by measurements of electrical conductivity (EC), pH and total suspended solids (TSSs). Minerals occurred at concentrations several orders of magnitude higher (1–102 mg/L) than those of TMs (10−2–102 μg/L) and reflected the composition of local groundwater seeping into sewers. Concentrations of Ca, K, Mg and Na were enhanced by baseflow contributions and followed closely the electrical conductivity. Al and Fe minerals occurred in insoluble forms, and their pollutographs were similar to those of TMs, whose concentrations mimicked, to some extent, the flux of TSS. The TMs with the highest and lowest particulate fractions were Cr&Pb and Cu&Zn, respectively. The concentrations of total TMs in snowmelt were two to four times higher than those in stormwater, and both sources likely exceeded some of the stormwater effluent limits (for Cd, Cu and Zn) proposed in Sweden. Where such concentrations depended on water hardness, the risk of toxicity might be reduced by elevated hardness of the monitored snowmelt and stormwater. Recognizing the good ecological status of the study area receiving water, Lake Storsjön, some protection against polluted runoff and snowmelt may be needed and could be achieved by implementing stormwater management measures controlling TSS and TMs.

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Section: Introductionmentioning

confidence: 99%

Mineral and Anthropogenic Indicator Inorganics in Urban Stormwater and Snowmelt Runoff: Sources and Mobility Patterns

Galfi

Österlund

Maršálek

et al. 2017

Water Air Soil Pollut

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“…Seasonal variation in data indicate winter maintenance activities as an influence (Gardner & Royer, 2010). Chloride concentrations in surface and groundwater have been steadily increasing for more than half a century (Cooper, Mayer, & Faulkner, 2014;Dailey, Welch, & Lyons, 2014;Godwin, Hafner, & Buff, 2003) Others have identified surrogate parameters as indicators of urban water quality, but did not include chloride in the sampling regime (Singh, Ayoko, Herngren, & Goonetilleke, 2013). Due to salts modifying water chemistry, it is critical to not only measure concentration, but also consider potential for corrosion and how the ion balance may be significantly altered.…”

Section: Chloride and Metal Mobilization In Urban Streamsmentioning

confidence: 99%

Chloride and corrosiveness

Kauten¹

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My research examines dimensions of freshwater salinization at the local and statewide scale and the capacity for public agency response. This study grows knowledge of this phenomenon by considering secondary effects such as metal mobilization. Primary and secondary water quality data sources and in-depth interviews compare chloride concentrations, copper, zinc and three corrosiveness indexes to assess local conditions and determine long-term statewide trends from 2001-2010. A series of in-depth interview transcripts were analyzed for patterns in themes, terminology and identify key factors in management decision-making. Results indicate local, urban chloride concentrations exist well above what is considered background conditions for Iowa streams. Pulses of maximum chloride concentrations exceed both acute and chronic toxicity, with runoff from roadway surfaces at one quarter the ionic strength of sea water. Meanwhile, long-term trends measured in larger-order streams indicate chloride concentrations are declining, possibly due to increased base flow. Potential for promoting galvanic corrosion is increasing over time, but likely as a function of sulfate, not chloride. When groundwater is present, carbonate ions likely sequester any mobilized metals. However, higher proportions of impervious surfaces in urban areas reduce the ability for groundwater and carbonate geology to sequester ions due to more surface water influencing local hydrology. Metals will then potentially mobilize when salts are present. Management of freshwater salinization is evolving, based on interview transcript details. Regulation tends to occur primarily for drinking water protection, and accounts for both household and industrial chloride sources. Feedback from public agency managers indicate managers tasked with snow and ice removal tend to view chloride as a tool, whereas scientists and regulated agencies consider it a pollutant of concern. This divide likely spurs inconsistent patterns in decisionvi making and prioritization. Salt is an important resource for managers and comprises a significant proportion of operating budgets and schedules. The role of salt in public works suggests industrial suppliers as key stakeholders. The salt industry has a unique opportunity to play a major role in solving what may ultimately become one of the most challenging water quality problems of the 21st Century.

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Processes improving urban stormwater quality in grass swales and filter strips: A review of research findings

Gavrić

Leonhardt

Maršálek

et al. 2019

Science of The Total Environment

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A Multivariate Approach to the Identification of Surrogate Parameters for Heavy Metals in Stormwater

Cited by 4 publications

References 13 publications

Mineral and Anthropogenic Indicator Inorganics in Urban Stormwater and Snowmelt Runoff: Sources and Mobility Patterns

Mineral and Anthropogenic Indicator Inorganics in Urban Stormwater and Snowmelt Runoff: Sources and Mobility Patterns

Chloride and corrosiveness

Processes improving urban stormwater quality in grass swales and filter strips: A review of research findings

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