Papers

20 results
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Article Tier 2

Contamination, morphological and chemical characterization, and hazard risk analyses of microplastics in drinking water sourced from groundwater in a developing nation

Researchers analyzed groundwater from six coastal districts in a developing nation and found widespread microplastic contamination, with fibers and fragments of polyethylene and polypropylene being the most common types. Since groundwater is the primary drinking water source in many developing countries, this contamination represents a direct pathway for microplastic ingestion by millions of people.

2024 Frontiers in Environmental Science 20 citations
Article Tier 2

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.

2024
Article Tier 2

Distribution and transport of microplastics in groundwater (Shiraz aquifer, southwest Iran)

Researchers investigated microplastic contamination in groundwater from an alluvial aquifer in a semi-arid region of Iran. They identified microplastics in all sampled wells, with fibers and fragments being the most common shapes and polyethylene the dominant polymer type. The study demonstrates that groundwater, an important source of drinking water, is not immune to microplastic contamination and calls for more research on transport mechanisms in subsurface environments.

2022 Water Research 84 citations
Article Tier 2

Microplastic pollution in soil and groundwater: a review

This review examines microplastic contamination in soil and groundwater, which has received less attention than ocean pollution. Littering is the main source of soil microplastics globally, and fibers and pellets are the most common shapes found. The contamination is harmful to soil organisms like earthworms and nematodes, can alter soil properties, and poses potential risks to human health through groundwater used for drinking.

2021 Environmental Chemistry Letters 384 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

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

A comprehensive review on microplastics: Their presence in surface and ground water, environmental distribution, and impact on human and aquatic systems

This comprehensive review examines the distribution, environmental behavior, and health impacts of microplastics in surface water and groundwater systems. Researchers summarized how microplastics enter surface waters and subsequently infiltrate groundwater, acting as carriers for other contaminants along the way. The study emphasizes the need for standardized analytical procedures for groundwater microplastic research and highlights the role of particle size and morphology in determining potential health effects.

2026 The Science of The Total Environment
Review Tier 2

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.

2022 The Science of The Total Environment 225 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

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

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

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

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.

2023 Environmental Pollution 20 citations
Article Tier 2

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.

2024 Civil and Sustainable Urban Engineering 1 citations
Systematic Review Tier 1

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.

2024 Environmental Pollutants and Bioavailability 59 citations
Article Tier 2

A Global Review of Microplastic Contamination in Groundwater: Empirical Evidence and Latin American Perspectives

Scientists reviewed 129 studies and found that tiny pieces of plastic (called microplastics) are contaminating groundwater around the world, which is concerning because groundwater provides drinking water to billions of people. The research shows we don't know enough about this problem, especially in Latin America where only two studies have actually tested groundwater for plastic contamination. This matters because we need better monitoring and policies to protect our underground water sources from plastic pollution that could affect human health.

2026 Water and Environment Journal
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

A review of the influence mechanisms of climate-induced events on groundwater microplastic contamination: A focus on aquifer vulnerabilities and mitigation strategies

This narrative review examines how climate change events — floods, droughts, sea level rise, and heat waves — are influencing the transport and accumulation of microplastics in groundwater and freshwater aquifers. Flooding emerged as the most significant driver, flushing surface microplastics into subsurface environments, which is alarming because groundwater is a primary drinking water source for billions of people globally.

2024 Science Progress 3 citations
Article Tier 2

Microplastics contamination in groundwater of a drinking-water source area, northern China

Researchers investigated microplastic contamination in shallow groundwater from a major drinking-water source area in northern China. The study found microplastics present in groundwater samples, with their abundance, morphology, and chemical composition varying across the study area and correlating with nearby human activities.

2022 Environmental Research 56 citations