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61,005 resultsShowing papers similar to State of knowledge and future research needs on microplastics in groundwater
ClearGlobal status, risk assessment, and knowledge gaps of microplastics in groundwater: A bibliometric analysis
This review analyzed 215 published studies on microplastics in groundwater and found that this area of research is still in its early stages compared to surface water studies. Evidence indicates that microplastic contamination is present in groundwater worldwide, but sampling methods and reported results vary widely. The authors identified significant knowledge gaps in understanding how microplastics move through underground water systems and what risks they may pose to drinking water sources.
Current status of researches on microplastics in groundwater and perspectives
This review examines the current status of microplastic research in groundwater systems internationally, identifying that despite growing attention to microplastics in surface and marine waters, groundwater investigations remain sparse both in South Korea and globally. Researchers diagnosed gaps in monitoring methodology and management frameworks, proposing directions for more effective groundwater microplastic assessment.
A bibliometric analysis on microplastic pollution in groundwater
Researchers conducted a bibliometric analysis of publications on microplastic contamination in groundwater, identifying 695 relevant studies published between 2011 and 2022. They found that while microplastic research has surged overall, groundwater as a specific focus area remains significantly understudied compared to ocean and surface water environments. The study highlights critical knowledge gaps in understanding how microplastics transport through and contaminate subsurface water sources.
Groundwater in the age of plastic
This review examines microplastic contamination of groundwater globally, synthesizing studies on occurrence, transport pathways through soil and aquifer matrices, and the emerging implications for drinking water safety and groundwater ecosystem health.
Research advances of micro/nanoplastics in groundwater: occurrence, environmental impacts and control strategies
This review examines the emerging issue of microplastic and nanoplastic contamination in groundwater systems, covering their sources, distribution patterns, potential environmental risks, and removal strategies. Researchers highlight that the strong heterogeneity and complexity of underground environments make studying microplastic migration particularly challenging. The study identifies significant knowledge gaps in sampling methods and calls for more research into how microplastics move through groundwater aquifers.
Review of Current Issues and Management Strategies of Microplastics in Groundwater Environments
This review synthesizes current knowledge on microplastic contamination in groundwater, identifying it as a substantially understudied environment compared to surface water and marine systems. The authors describe pathways by which microplastics enter aquifers and discuss management strategies for this largely invisible contamination route.
An Overview of Microplastic Contamination in Groundwater: Sources, Transport Pathways, and Environmental Implications
This review examined microplastic contamination in groundwater systems, an area that has received less research attention compared to surface water. Researchers identified key sources and transport pathways for microplastics entering groundwater, including infiltration through soil and fractured rock, and highlighted the environmental implications for drinking water supplies.
Microplastics in Groundwater: Pathways, Occurrence, and Monitoring Challenges
This review provides a comprehensive look at how microplastics make their way into groundwater from surface water, seawater, and soil, and examines the challenges researchers face in detecting and monitoring them. The study found that a lack of standardized sampling and analysis methods makes it difficult to compare findings across different studies. Researchers emphasize the importance of understanding local geological conditions and preventing sample contamination to improve the reliability of groundwater microplastic monitoring.
The Urgent Need to Investigate Microplastic Contamination in Groundwater: Soil and Groundwater Interactions as Key Drivers
This viewpoint paper argued for urgent investigation of microplastic contamination in groundwater, highlighting soil-groundwater interactions as key drivers of subsurface MP transport and emphasizing the gap in current monitoring efforts.
Microplastic pollution in groundwater: a systematic review
This systematic review reveals that microplastics have been found in groundwater sources worldwide, raising concerns about drinking water safety. Detection methods and reported contamination levels vary widely, highlighting the need for standardized testing to fully understand the scope of the problem.
Control strategies for microplastic pollution in groundwater
This review summarizes how microplastics migrate from soil into groundwater and the strategies available to control this contamination. Researchers found that microplastic concentrations in groundwater vary by region, with factors like soil type and land use influencing how particles travel underground. The study highlights the urgency of developing effective control measures since groundwater is a primary drinking water source for much of the world's population.
Need of groundwater microplastics study: insights from India
This perspective reviews groundwater microplastic research in India, noting that studies only began in 2019 and remain largely confined to Tamil Nadu, and identifying key research gaps including comprehensive monitoring, hotspot mapping, subsurface migration mechanisms, and soil-groundwater interface behavior of primarily polyethylene and polypropylene microplastics.
Groundwater systems under siege: The silent invasion of microplastics and cock-tails worldwide
This review reveals that groundwater, a critical drinking water source for billions of people, is increasingly contaminated with microplastics from surface pollution seeping downward through soil. Unlike ocean and river pollution, groundwater microplastic contamination has received far less research attention, leaving major gaps in understanding how plastics migrate underground. The findings are alarming because contaminated groundwater directly enters drinking water supplies with little to no treatment in many regions.
Microplastics in groundwater: a global analysis
Researchers conducted a global groundwater sampling study to characterize microplastic contamination in aquifer systems worldwide, investigating transport mechanisms and fate of particles in anoxic subsurface environments where knowledge gaps remain despite extensive research on surface water systems.
Trends of global concerns on groundwater contamination and future directions
A bibliometric review of nearly 39,000 groundwater contamination studies from 1991–2024 tracks a shift in research focus from classic pollutants toward emerging contaminants including microplastics, PFAS, and pharmaceuticals, while noting most of these remain unregulated. The review is relevant to microplastic risk assessment because it identifies groundwater — a source of drinking water for billions — as a frontier where microplastic research and regulation urgently need to catch up.
Microplastics in freshwater and terrestrial environments: Evaluating the current understanding to identify the knowledge gaps and future research priorities
This review evaluates the current understanding of microplastic pollution in freshwater and terrestrial environments, which have received far less research attention than marine systems despite being major sources and accumulation zones. Researchers highlight that agricultural areas, urban centers, and wastewater treatment processes are key pathways for microplastic contamination on land. The paper identifies critical knowledge gaps and calls for more research into how microplastics behave and persist in soils and freshwater systems.
Comprehensive investigation on microplastics from source to sink
This review paper traces microplastic pollution from where it originates to where it ends up, covering sources, detection methods, and effects on soil and water environments. It highlights major gaps in our understanding, especially around microplastics in soil compared to water, and the lack of standardized ways to measure them. The review emphasizes that microplastics are everywhere in our environment and calls for better research tools and coordinated global efforts.
Global distribution, drivers, and potential hazards of microplastics in groundwater: A review
This review maps the global distribution of microplastics in groundwater and finds that contamination is widespread, with fiber-shaped particles and polyethylene being the most common types detected. The study highlights that climate change and local geology play underappreciated roles in how microplastics move through soil into groundwater, which is a drinking water source for billions of people worldwide.
Methods to optimize the collection, pretreatment, extraction, separation, and examination of microplastics in soil, groundwater, and human samples
This review evaluates and compares methods for detecting microplastics in soil, groundwater, and human tissue samples, finding significant inconsistencies that make it hard to compare results across studies. Standardizing these detection methods is critical for accurately measuring human microplastic exposure and understanding its health effects.
Understanding Microplastic Pollution in Groundwater: Pathways, Health Implications and Solutions
This review examines how microplastics infiltrate groundwater systems through pathways including landfills, agricultural runoff, water treatment facilities, and aging plastic pipes. Researchers found that once in groundwater, microplastics can persist for long periods and degrade water quality while interacting with other subsurface contaminants. The study highlights that groundwater microplastic contamination is an underappreciated threat to one of humanity's most important freshwater sources.
Microplastic accumulation in groundwater: Data-scaled insights and future research
This data-driven review of nearly 400 groundwater samples worldwide found that microplastics are present in both shallow and deep groundwater, with open groundwater sources showing higher contamination than enclosed aquifers. The findings are relevant to human health because groundwater supplies drinking water for billions of people, and the study identifies key gaps in our understanding of how microplastics accumulate underground.
Microplastics contamination of groundwater: Current evidence and future perspectives. A review
This review examines the current evidence on microplastic contamination of groundwater, which supplies drinking water to over 2 billion people worldwide. Researchers found that microplastics can reach groundwater through atmospheric deposition, surface water interaction, urban infrastructure, and agricultural soils, though detection remains challenging. The study proposes a new "Hydrogeoplastic Model" framework and calls for improved detection methods to better characterize microplastic fate in aquifer systems.
Microplastics and nanoplastics in agriculture—A potential source of soil and groundwater contamination?
Researchers reviewed how microplastics and nanoplastics (tiny plastic fragments) contaminate agricultural soils and can migrate through the soil into groundwater, potentially carrying pesticides and other chemicals with them. They conclude that current analytical tools are inadequate and that plastic fragmentation in soils is a poorly understood but serious threat to drinking water supplies.
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.