📄 Category

earth_science

2353 papers

📄 earth science

Baseline Assessment of Microplastic Pollution at Eleko Beach, Lagos, Nigeria: Implications for Citizen-Science-Based Coastal Monitoring National Ocean Microplastics Monitoring Initiative (NOMMI)

This paper presents the National Ocean Microplastics Monitoring Initiative's (NOMMI) Phase 1 baseline assessment at Eleko Beach, Lagos, which quantified microplastic contamination in surface water and sediment using validated citizen-science protocols and highlights the urgent need to expand monitoring networks along Nigeria's urbanized coast.

Chukwuemeka Isaac Chukwuleta, Samuel Oyefusi, Esther Emmanuel, Emmanuel Ejiogu, Ibukunoluwa Afolabi, Sophia PoBari-Soter (…)2026-09-30
📄 earth science

Spatiotemporal variation in total nitrogen and organic matter in sediments of the Jingjiang Reach, Yangtze River

This study analyzes the spatiotemporal variations of sediment total nitrogen and organic matter in the Jingjiang Reach of the Yangtze River, revealing that while both parameters lack significant longitudinal gradients, organic matter is specifically enriched downstream of mid-channel bars due to flow and depositional conditions, with overall concentrations showing distinct seasonal fluctuations and generally low pollution levels.

Xiaobing Meng, Yuhong Zeng, Runpei Liu2026-09-30
📄 earth science

Integrated Geochemical Evaluation of the Hagfah Shale: Depositional Environment, Kerogen Type, and Hydrocarbon Potential in the Sirte Basin, NE, Libya

Geochemical analysis of the Hagfah Shale across six wells in Libya's Sirte Basin reveals that while localized intervals in the Hateiba Ridge and Ajdabiya Trough show minor hydrocarbon retention, the formation generally possesses limited petroleum source-rock potential due to low total organic carbon content and a predominance of gas-prone Type III kerogen.

Fares Fares, Mohammed Afkareen, Osama Fallah, Abobkar Algomati, Faraj Faraj2026-09-30
📄 earth science

Renters are Predicted to be More Mobile than Homeowners Following Flooding: The Role of Housing Tenure in Environmental Migration Research

Using longitudinal data from 2009 to 2023, this study reveals that renters are significantly more likely than homeowners to migrate following flooding, while poverty further increases the likelihood of homeowners remaining in place, underscoring the critical role of housing tenure in shaping equitable climate adaptation policies.

Kathryn Foster2026-09-30
📄 earth science

Geographical Information Systems Based Drought Vulnerability Assessment of the Northwestern Phalombe Plain of Southern Malawi

This study utilizes a GIS-based approach integrating climatic, environmental, and hydrological data to identify the northwestern Phalombe Plain as an increasingly vulnerable drought hotspot driven by the Mulanje Massif's rain-shadow effect, recurrent El Niño events, and land degradation, thereby recommending enhanced monitoring and climate-smart practices to improve resilience.

Mathews Mtegha, Isaac Kadono Mwalwimba, Edna Ibrahim, Harold Wilson Tumwitike Mapoma, Alfred Piyo2026-09-30
📄 earth science

Jet fuel variability propagates to aircraft particle emissions at the airport scale

This study demonstrates that variability in certified jet fuel composition, specifically aromatic, hydrogen, and sulfur content, directly influences aircraft ultrafine particle emissions during routine airport operations, establishing fuel composition as a viable lever for improving local air quality.

Benedict Enderle, Steffen Schmitt, Nina Gaiser, Tobias Grein, Patrick Le Clercq, Nina Reijrink, Uwe Bauder, Hannes Lüdtk (…)2026-09-30
📄 earth science

Hydrogeochemical controls and health risk assessment of co-occurring nitrate and arsenic in private wells of the western Kansas High Plains Aquifer USA

This study reveals that while most private wells in western Kansas' High Plains Aquifer comply with current regulatory limits for nitrate and arsenic, a significant portion still poses moderate-to-high health risks to children and adults due to co-occurring contamination driven by agricultural loading and geogenic mobilization, suggesting a need for risk-informed governance with stricter thresholds.

Jonathan Kuffour Owusu¹, Thomas Schafer¹, Jeanne Sumrall², Richard Lisichenko³2026-09-30
📄 earth science

The Potential of Shore Power to Mitigate Air Pollution in Seaports: A Case Study of the Port of Bremerhaven Based on Vessel OPS Capability

This study demonstrates that implementing onshore power supply (OPS) at the Port of Bremerhaven could drastically reduce operational and external costs while significantly lowering air pollution emissions, though its success depends on electricity pricing, vessel compatibility, and infrastructure investment.

Flóra Zsuzsanna Gulyás, Aseem Kinra2026-09-30
📄 earth science

Assessment of the significance of urban vegetation in air phytoremediation: Quantitative analysis of particulate matter removed

This study employs direct physical sampling of leaf surfaces to quantify Delhi's urban vegetation removal of particulate matter, revealing that while forests capture significant tons of PM, they remove only a small fraction (approximately 1.08% for PM2.5) of city-wide emissions due to saturation limits, thereby demonstrating that urban greening must complement rather than replace emission control strategies.

Sombir Pannu, Rakesh Maity, Mayank Kumar, Vikram Singh2026-09-30