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20 resultsShowing papers similar to A Review of Microplastic Pollution Characteristics in Global Urban Freshwater Catchments
ClearMicroplastics in urban runoff: Global occurrence and fate
This review examines global microplastic occurrence in urban runoff, finding concentrations up to 8,580 particles per liter, and highlights critical gaps in understanding microplastic mobilization, transport, and flux from urban environments to waterways.
Sources, transport, measurement and impact of nano and microplastics in urban watersheds
This review examines what is known about nano and microplastic sources, transport pathways, transformations, and measurement challenges in urban watershed environments, identifying freshwater and terrestrial systems as critically underresearched compared to marine settings. The authors stress that most ocean plastic originates from land, making urban watershed research essential for source control.
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.
Microplastics in urban catchments: Review of sources, pathways, and entry into stormwater
This review examines microplastic sources, transport pathways, and entry mechanisms into urban stormwater systems, identifying atmospheric deposition, tire and road wear particles, and micro-litter as major contributors and highlighting the need for improved source control strategies.
Sources and Fate of Microplastics in Urban Areas: A Focus on Paris Megacity
Using Paris as a case study, this chapter analyzes the various sources of microplastics in an urban catchment — including wastewater, stormwater runoff, and atmospheric deposition — and traces how they move through the city's water system. The study underscores that urban environments are major generators and conduits for microplastic pollution reaching freshwater and marine systems.
Microplastics as contaminants in freshwater environments: A multidisciplinary review
This multidisciplinary review covers microplastic sources, abundance, composition, transport, and biological effects in freshwater systems globally, arguing that freshwater environments are both major conduits and sinks for microplastic pollution.
Quantitative Analysis of Urban Microplastic Dissemination and Accumulation in Marine Ecosystems: Pathways, Processes, and Impacts
Researchers conducted quantitative water and sediment sampling across urban, riverine, and marine environments to trace microplastic transport pathways from cities into marine ecosystems. They found microplastics in all sampled environments — highest in urban areas — with polyethylene, polypropylene, and PET most prevalent, and documented ingestion evidence across marine species alongside seasonal concentration peaks correlated with rainfall-driven urban runoff.
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.
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.
Sources, Occurrence, and Analysis of Microplastics in Freshwater Environments
This review summarizes current knowledge on microplastic sources and occurrence in freshwater environments, noting that freshwater systems are major conduits delivering microplastics to the ocean. The review highlights that freshwater microplastic research lags far behind marine studies despite rivers and lakes being primary pollution pathways.
Assessment of Micro-Plastic Contamination in Urban River Systems: A Case Study Using UK Catchment Data
This systematic review examines microplastic contamination in urban rivers across the UK, finding that wastewater treatment plants, stormwater runoff, and industrial discharge are the main sources. The research matters for human health because urban rivers supply drinking water and recreational areas, and microplastic pollution in these waterways increases the risk of human exposure.
Quantitative Analysis of Urban Microplastic Dissemination and Accumulation in Marine Ecosystems: Pathways, Processes, and Impacts
Researchers used water and sediment sampling across urban, riverine, and marine environments to quantify microplastic pathways from cities into marine ecosystems, finding the highest concentrations in urban areas linked to industrial activity and poor waste management. Polyethylene, polypropylene, and PET were the most common polymer types, with seasonal peaks in concentration tracking periods of high rainfall and urban runoff.
Microplastics in water: occurrence, detection, and impacts – a comprehensive review of multiple studies
This comprehensive review synthesized current knowledge on microplastic occurrence, detection methods, and impacts across marine, freshwater, and remote aquatic ecosystems. Researchers highlighted that microplastic concentrations are particularly high in urban rivers, transported through runoff, atmospheric deposition, and river input. The review identifies critical research gaps including the need for standardized detection methods and more studies on chronic human exposure through contaminated seafood and drinking water.
Microplastics in Freshwater Environments – With Special Focus on the Indian Scenario
This review examines microplastic pollution in freshwater environments globally with a focus on the Indian context, finding that despite India being one of the world's largest contributors to marine plastic pollution, freshwater microplastic research in India remains almost entirely absent, and calling for systematic river catchment monitoring to quantify land-to-ocean plastic fluxes.
Microplastics in freshwater: A global review of factors affecting spatial and temporal variations
This global review analyzed 75 studies to identify the spatial and temporal factors that influence freshwater microplastic distribution. Researchers found that higher microplastic concentrations are consistently associated with urban land cover, high population density, and wastewater treatment plant effluent, while precipitation increases and higher water flow decreases local concentrations. The study calls for more standardized spatial analytical methods to improve comparability across studies.
A Comprehensive Review of MP Pollution in Global Rivers: Distribution Patterns and Fluvial Transport Dynamics
A global review of microplastic pollution in river sediments found the highest concentrations in Africa and Asia, with wastewater treatment plants, industrial discharges, and urban runoff as the primary sources, and rivers transporting an estimated 70–80% of land-based plastic waste to the oceans. This synthesis underscores that rivers are critical intervention points for reducing the flow of microplastics into marine ecosystems.
Microplastics in Aquatic Environments: Sources, Environmental Impacts, Detection Methods, Mitigation Strategies, and Policy Development — A Systematic Review
This systematic review summarizes what we know about microplastics in water — where they come from, how they spread, and the risks they pose to ecosystems and human health. It highlights that wastewater, urban runoff, and air are the main ways microplastics travel, and calls for better global policies and monitoring standards.
Anthropogenic Litter in Urban Freshwater Ecosystems: Distribution and Microbial Interactions
Researchers quantified anthropogenic litter in urban rivers and streams and found that microplastics dominated by mass and particle count compared to macroplastic items. The study highlights urban freshwater systems as major conduits for plastic pollution moving toward marine environments and documents distinct microbial communities on plastic surfaces.
Plastic and Microplastic in the Environment
This review summarizes the sources, pathways, analytical methods, and distribution of microplastics in freshwater environments, emphasizing that rivers and lakes are major conduits transferring plastic pollution from terrestrial sources to the oceans.
Runoff and discharge pathways of microplastics into freshwater ecosystems: A systematic review and meta-analysis
This meta-analysis examines how microplastics enter freshwater systems through wastewater, stormwater runoff, industrial discharge, and agricultural runoff. Understanding these pathways is essential because freshwater sources provide drinking water, and knowing where microplastics come from helps target efforts to reduce human exposure.