Papers

61,005 results
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Article Tier 2

Topical Collection: International Year of Groundwater—managing future societal and environmental challenges

Researchers and hydrogeologists highlight the growing importance of groundwater in the global water cycle and call for better assessment, management, and public communication strategies to meet the UN's water-related Sustainable Development Goals by 2030.

2023 Hydrogeology Journal 10 citations
Article Tier 2

Groundwater resources: Challenges & solutions

This review examined the global challenges facing groundwater resources, including over-extraction, contamination by agricultural chemicals and microplastics, and salinization. It assessed emerging solutions including managed aquifer recharge, advanced monitoring, and international governance frameworks for sustainable groundwater management.

2024 Cambridge Prisms Water
Article Tier 2

Groundwater quality: global challenges, emerging threats and novel approaches

This review highlights global groundwater quality challenges including emerging contaminants and antimicrobial resistance, emphasizing the need for significantly improved monitoring to identify and mitigate threats from historical and future pollution sources.

2022 Hydrogeology Journal 37 citations
Article Tier 2

Future Global Groundwater Quality Challenges

This review outlines emerging and legacy groundwater quality challenges that threaten drinking water security globally, including microplastic contamination alongside chemical and microbial pollutants. The authors call for improved monitoring and treatment infrastructure to protect future groundwater supplies.

2024 Abstracts with programs - Geological Society of America
Article Tier 2

Groundwater is a hidden global keystone ecosystem

This study presents a global analysis showing that groundwater is a foundational ecosystem that supports over half of the world's land surface areas, yet it remains largely overlooked in conservation efforts. Researchers argue that groundwater should be recognized as a keystone ecosystem because its health directly influences rivers, wetlands, and other surface habitats. The findings call for including groundwater in global biodiversity protection frameworks before further depletion and pollution cause irreversible damage.

2023 19 citations
Article Tier 2

Environmental chemistry, toxicity and health risk assessment of groundwater: Environmental persistence and management strategies

This review examines groundwater contamination from heavy metals, pesticides, microplastics, and emerging pollutants, assessing health risks and highlighting the need for integrated management strategies to protect this critical freshwater resource.

2022 Environmental Research 33 citations
Article Tier 2

Addressing water resource management challenges in the context of climate change and human influence

This study identifies and documents the key challenges facing water resource management due to the combined pressures of climate change and human activity. Researchers found that droughts, floods, sea-level rise, and pollution are threatening both water quality and public health on a global scale. The study emphasizes that more sustainable approaches to water governance and infrastructure are urgently needed to address the growing gap between water supply and demand.

2023 European Journal of Sustainable Development Research 24 citations
Article Tier 2

Drought and Groundwater Development

This paper is not about microplastics; it is a review or study of groundwater resources and their relationship to drought.

2023 Water 7 citations
Article Tier 2

Groundwater is a hidden global keystone ecosystem

This study argues that groundwater should be recognized as a "keystone ecosystem" because of its critical role in sustaining surface environments, biodiversity, and human water supplies. Over half of the world's land surface has significant interaction with groundwater, yet it remains overlooked in conservation planning. Protecting groundwater is essential for planetary health, including safeguarding water sources from emerging contaminants like microplastics.

2023 Global Change Biology 103 citations
Article Tier 2

Sources and Consequences of Groundwater Contamination

Researchers reviewed sources and health consequences of groundwater contamination across India, China, Pakistan, Turkey, Ethiopia, and Nigeria, summarizing both geogenic pollutants (naturally occurring) and anthropogenic contaminants while identifying key gaps in remediation technology and monitoring capacity.

2021 Archives of Environmental Contamination and Toxicology 669 citations
Article Tier 2

Groundwater–Surface Water Interactions: Recent Advances and Interdisciplinary Challenges

This review covers recent advances in understanding groundwater–surface water interactions, including their importance for drinking water security and contaminant transport, and argues for interdisciplinary approaches that combine hydrology, ecology, and geochemistry.

2020 Water 101 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

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

Insights into Global Water Reuse Opportunities

This review examines global opportunities and challenges for reusing treated wastewater, which is becoming increasingly important as water scarcity worsens worldwide. A key concern discussed is that recycled water may contain emerging contaminants including microplastics that current treatment methods do not fully remove. The findings highlight the need for advanced treatment technologies to ensure that water reuse does not become a pathway for microplastic exposure in communities.

2023 Sustainability 59 citations
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

Sustainable Water Infrastructure: Visions and Options for Sub-Saharan Africa

This review assesses the challenges facing water infrastructure sustainability in Sub-Saharan Africa, including aging systems, limited resources, and environmental pressures. Researchers evaluated global interventions and assessed their relevance to the African context using a framework that considers societal, technological, economic, environmental, and political dimensions. The study recommends an expanded analytical approach to develop more resilient and sustainable water systems for the region.

2024 Sustainability 35 citations
Article Tier 2

Groundwater dependent ecosystems in coastal Mediterranean regions: Characterization, challenges and management for their protection

Researchers reviewed the status of coastal groundwater-dependent ecosystems (wetlands and lagoons sustained by aquifer discharge) in Mediterranean regions, identifying plastic pollution, over-extraction, and weak governance as critical threats, and calling for new legal definitions and transdisciplinary management frameworks to protect them.

2020 Water Research 156 citations
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

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

Mapping Global Research Trends in Groundwater Quality (2010–2025): a Bibliometric Perspective

Researchers conducted a bibliometric analysis of groundwater quality research published in Scopus between 2010 and 2025, identifying key publication trends, influential authors, and emerging themes including microplastic pollution, extreme event-driven contamination, and AI-based monitoring techniques, while mapping the evolution of interdisciplinary approaches integrating climate science, environmental engineering, and public health.

2026 Malaysian Journal of Civil Engineering
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

A global hydrology research agenda fit for the 2030s

A group of global hydrology researchers outlines priority research questions for freshwater science through 2030, identifying key knowledge gaps around water quality, ecosystem health, and emerging contaminants including microplastics. The agenda calls for more integrated monitoring and modeling to address growing pressures on freshwater resources worldwide.

2019 Hydrology research 46 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

Groundwater Pollution and Contamination: Sources, Impacts, Management, and the Integration of AI/ML for Future Solutions

This review covers the sources, health impacts, and management strategies for groundwater pollution, including contamination from agricultural runoff, industrial waste, and landfill leachate. While broadly focused on water quality, the paper is relevant to microplastic concerns because contaminated groundwater is a drinking water source for billions of people, and emerging pollutants including microplastics are increasingly found in these systems.

2025 Research Journal in Civil Industrial and Mechanical Engineering 10 citations