Papers

20 results
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Article Tier 2

Global 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.

2024 Groundwater for Sustainable Development 5 citations
Article Tier 2

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.

2026 Ecotoxicology and Environmental Safety
Article Tier 2

Freshwater microplastics pollution: Detecting and visualizing emerging trends based on Citespace II

Researchers used bibliometric analysis software to systematically map the emerging field of freshwater microplastic research. The study found a significant gap between freshwater and marine microplastic research, with most freshwater studies conducted in developed countries despite developing nations facing the most severe plastic pollution. The authors note that while rivers and lakes have received some attention, other freshwater sources like groundwater and reservoirs remain largely unstudied.

2019 Chemosphere 200 citations
Article Tier 2

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.

2024 Zenodo (CERN European Organization for Nuclear Research)
Article Tier 2

A Bibliometric Analysis of Soil Pollution due to Microplastics

This bibliometric analysis reviewed the scientific literature on soil microplastic pollution to map research trends, key contributors, and knowledge gaps. The study found growing global research interest in this area and highlighted that microplastics entering the food chain through contaminated soil represents an underappreciated pathway to human exposure.

2020 Insecta mundi 2 citations
Article Tier 2

State of knowledge and future research needs on microplastics in groundwater

This study used text-mining analysis of the scientific literature to summarize the state of knowledge on microplastics in groundwater, identifying research gaps around sources, transport through soil, and human exposure through drinking water. The review found that groundwater microplastic research lags behind surface water studies and that uniform detection methods are lacking.

2022 Journal of Water and Health 16 citations
Article Tier 2

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.

2025 Environmental Pollution 5 citations
Article Tier 2

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.

2024 Water Research 20 citations
Article Tier 2

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.

2022 Water 64 citations
Article Tier 2

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.

2025 Water Environment Research 4 citations
Article Tier 2

Global trends and prospects in microplastics research: A bibliometric analysis

Researchers conducted a bibliometric analysis of global microplastics research using the Web of Science database from 1986 to 2019. The study found that publications on microplastics increased significantly since 2011, with research hotspots and trends shifting from marine contamination surveys toward understanding ecological impacts and human health implications.

2020 Journal of Hazardous Materials 234 citations
Article Tier 2

Unveiling the Microplastics Menace: A Bibliometric Analysis from 2011 to 2023

This review examines the escalating problem of microplastic pollution in aquatic environments through bibliometric analysis of literature from 2011 to 2023, identifying gaps in knowledge and emerging research opportunities related to the degradation, distribution, and ecological impacts of microplastics.

2024 Springer Link (Chiba Institute of Technology)
Article Tier 2

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.

2024 Environmental Pollution 12 citations
Article Tier 2

Micro(nano)plastics as Emerging Pollutants in Global Aquatic and Terrestrial Ecosystems: A Bibliometric Analysis

This bibliometric analysis mapped the global landscape of micro- and nanoplastic research in aquatic and terrestrial ecosystems using data from major scientific databases. Researchers identified key research trends, leading countries, and the most active institutions contributing to the field. The study reveals that while research output has surged in recent years, significant knowledge gaps remain around nanoplastics and their long-term ecological effects.

2024 Environmental Forensics 5 citations
Article Tier 2

Microplastics Pollution in the Groundwater of Three Land Use Types, Southeastern Hungary

Researchers investigated microplastic pollution in groundwater across three land use types in southeastern Hungary, providing data on the rate and distribution of microplastic contamination in a freshwater resource that has received far less study than surface water bodies.

2025 Sokoto Journal of Geographical Studies
Article Tier 2

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.

2022 Journal of the geological society of Korea 13 citations
Article Tier 2

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.

2025 Journal of Geography Environment and Earth Science International 1 citations
Article Tier 2

Bibliometric Insights into Microplastic Pollution in Freshwater Ecosystems

A bibliometric analysis of 885 documents on freshwater microplastic pollution published 2013–2023 found an average annual growth rate of 73%, with primary and secondary microplastics and their ecological consequences as dominant research themes, mostly published in environmental science journals.

2024 Water 6 citations
Article Tier 2

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.

2024 Water 20 citations
Article Tier 2

Unveiling the Microplastics Menace: A Bibliometric Analysis from 2011 to 2023

A bibliometric analysis of microplastic research from 2011 to 2023 maps the rapid growth of this field, identifying bioaccumulation in marine organisms, ecological impacts, and detection techniques as areas with significant remaining knowledge gaps. The analysis highlights that while publication volume has surged, critical questions about long-term ecosystem effects and exposure risks remain underexplored, pointing to where future research investment is most needed.

2024 BIO Web of Conferences 2 citations