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61,005 resultsShowing papers similar to Contaminants in Urban Stormwater: Barcelona case study
ClearAnalysis of Micropollutants in Urban Water Run-off
This study investigates the quality of urban stormwater runoff, focusing on concentrations of micropollutants including heavy metals and microplastics. The research evaluates how runoff from urban surfaces contaminates both groundwater and surface water, and assesses current stormwater management strategies in cities.
Urban stormwater capture for water supply: look out for persistent, mobile and toxic substances
Urban stormwater harvested for water supply was found to contain persistent, mobile, and toxic substances, raising concerns about water quality risks from this increasingly used alternative water source. The study calls for better characterization of stormwater contaminant profiles before use.
Urban Stormwater and Groundwater Quality: Pathways, Risks, and Green Infrastructure Solutions
This review examines how urban stormwater runoff transports microplastics, pharmaceuticals, heavy metals, and pathogens into groundwater, analyzing physicochemical factors affecting pollutant mobility in urban soils and evaluating green infrastructure solutions such as bioswales and permeable pavements.
Occurrence of specific pollutants in a mixture of sewage and rainwater from an urbanized area
Researchers characterized specific pollutants in combined sewage and rainwater from an urban mixed drainage system, identifying microplastics, pharmaceuticals, and other contaminants and assessing their concentrations relative to environmental quality standards.
Plastic pollution risks in bioretention systems: a case study
Researchers investigated plastic pollution in urban stormwater bioretention systems and found these green infrastructure features both accumulate microplastics from road runoff and risk leaching plastic particles into groundwater, raising concerns about their role as pollution pathways.
Estimated discharge of microplastics via urban stormwater during individual rain events
Researchers collected stormwater samples from 15 locations during rain events to assess microplastic discharge through urban runoff. The study found highly variable microplastic concentrations influenced by catchment characteristics, and provided estimates of the quantity of microplastics released to receiving waters during rain events, highlighting urban stormwater as an important pathway for microplastic pollution.
Microplastic contamination in an urban area: a case study in Greater Paris
Researchers investigated microplastic contamination across Greater Paris, finding that urban areas generate and accumulate substantial microplastic pollution through multiple pathways including stormwater, atmospheric deposition, and river transport.
Multi-contaminants in road runoff of a compact city: Characteristics, interactions, and ecological risks
Researchers characterised multi-contaminant pollution in road runoff from a compact city, examining the sources, transport mechanisms, interactions, and ecological risks of co-occurring contaminants including microplastics, heavy metals, and other pollutants. The study found that microplastics in road runoff interact with co-contaminants in ways that amplify ecological risk, with urban density and road surface type influencing contaminant profiles.
Urban and Groundwater Microplastic Contamination: Sources, Distribution, Impacts, and Remediation Technologies
This review addressed microplastic contamination in urban environments and groundwater systems, covering source pathways from roads and stormwater runoff, distribution through urban catchments, and potential impacts on drinking water aquifers. It highlighted groundwater as an understudied but critical exposure pathway.
Urban Stormwater Runoff: A Major Pathway for Anthropogenic Particles, Black Rubbery Fragments, and Other Types of Microplastics to Urban Receiving Waters
Researchers quantified microplastics in urban stormwater runoff from 12 watersheds surrounding San Francisco Bay and found concentrations ranging from 1.1 to 24.6 particles per liter, much higher than typical wastewater treatment plant effluent. The study suggests that stormwater runoff is a major and underappreciated pathway for microplastics and other anthropogenic particles to enter urban waterways.
Potential Discharge of Microplastics in Surface Runoff—Bucharest Case Study
Researchers assessed microplastic discharge in surface runoff in Bucharest, Romania, examining plastic particle concentrations, morphologies, and transport pathways as runoff moves from urban surfaces into water systems.
Microplastics retained in stormwater control measures: Where do they come from and where do they go?
Stormwater control measures were found to retain and accumulate microplastics from both episodic stormwater loading and continuous atmospheric deposition, raising concern that they may serve as long-term microplastic sources to groundwater through downward particle migration.
The role of precipitation events in the water quality of a buffer urban ecosystem
Researchers quantified how precipitation events affect water quality in an urban drainage reservoir in Santa Fe, Argentina, finding that stormwater runoff substantially elevated concentrations of nutrients, heavy metals, microplastics, hydrocarbons, and coliform bacteria during and after rainfall events throughout an annual hydrological cycle.
The urban microplastic footprint: investigating the distribution and transport
Researchers investigated the distribution and transport of microplastics within an urban environment, mapping the 'urban microplastic footprint' to understand how city infrastructure and land use patterns drive the spatial distribution and downstream export of plastic particles to receiving water bodies.
Microplastics in urban stormwater sediments and runoff: An essential component in the microplastic cycle
This review systematically analyzed microplastic contamination in urban stormwater runoff and sediments, finding concentrations that varied enormously across global studies. Researchers found that stormwater is a major but underappreciated pathway for delivering microplastics to rivers, lakes, and oceans. The study highlights that better stormwater management practices are needed to reduce this significant source of aquatic microplastic pollution.
Assessment of input of organic micropollutants and microplastics into the Baltic Sea by urban waters
This study assessed how microplastics and chemical pollutants enter the Baltic Sea through urban wastewater streams, including treated and untreated sewage and stormwater runoff. Combined sewer overflows during rain events were identified as a major uncontrolled source of both microplastics and micropollutants.
Microplastic Pollution in Stormwater: Preliminary Findings from the Oregon Coast
Researchers collected stormwater samples and analyzed them for microplastic content, providing preliminary findings on particle abundance, types, and size distributions in urban stormwater runoff. The results confirm stormwater as a significant pathway for microplastics from land surfaces into receiving water bodies.
Changes in Stormwater Quality and Heavy Metals Content along the Rainfall–Runoff Process in an Urban Catchment
Researchers tracked how stormwater quality changes as rainfall travels through an urban catchment in northeastern Poland, from rooftops to storm drains to a receiving river. They found that heavy metal concentrations and other pollutants varied significantly depending on the collection point and rainfall characteristics. The study highlights how urban surfaces and drainage infrastructure influence the types and levels of contaminants that ultimately reach natural waterways.
Urban Microplastics Emissions: Effectiveness of Retention Measures and Consequences for the Baltic Sea
Researchers estimated that 6.7 x 10^13 microplastic particles enter the Baltic Sea annually from urban sewage pathways, with stormwater runoff accounting for 62% of emissions, and modeled scenarios showing that improved retention measures in wastewater infrastructure could substantially reduce these inputs.
Stormwater runoff microplastics: Polymer types, particle size, and factors controlling loading rates
Researchers characterized microplastics in stormwater runoff samples collected at urban outfall locations. The study identified 17 different polymer types across various storm events, with concentrations around 0.99 particles per liter for the 500-1000 micrometer size range, and found that rainfall intensity and land use were key factors controlling microplastic loading rates.
Microplastics in urban water systems, Tehran Metropolitan, Iran
Researchers investigated microplastic contamination across Tehran's urban water systems, including runoff, drinking water, groundwater, rivers, and wastewater effluent. They found microplastics present in all parts of the system, with residential and commercial runoff showing the highest concentrations. The study revealed that different land use types influenced the amount and characteristics of microplastic pollution, suggesting that urbanization patterns play a significant role in water contamination.
Predicted aquatic exposure effects from a national urban stormwater study
Researchers estimated cumulative acute risks to aquatic ecosystems from contaminant mixtures in episodic stormwater discharges across the US, revealing significant potential exposure effects on multiple trophic levels.
Microplastics and microfibers in urban runoff from a suburban catchment of Greater Paris
Researchers collected stormwater runoff samples from a suburban catchment in Greater Paris across multiple rain events and found significant concentrations of microplastics and microfibers, with concentrations varying substantially between events and correlating with rainfall intensity and catchment dry-weather duration.
Trafikrelaterade föroreningar i urban snö : Koncentrationer, storleksfördelning och spridning vid snösmältning
This Swedish study found that urban snowbanks accumulate traffic-related pollutants — including microplastics, metals, and organic compounds — which are released in concentrated pulses when snow melts in spring, posing risks to urban waterways.