📄 earth science

First-Principles Calculation of FE1-X SX Liquid Alloys at Conditions of Earth’s Outer Core

This study utilizes first-principles calculations to characterize the structural, dynamical, and thermodynamic properties of liquid Fe-S alloys under Earth's outer core conditions, revealing that while sulfur concentrations between 10.2 and 11.4 wt% can explain the core's density, they fail to account for its sound velocity, thereby indicating that sulfur alone cannot be the sole light element present.

Aldemar de Moya Camacho, Issac Castillo, Alin M. Elena, Marc Blanchard, Guillaume Morard, Carlos Pinilla2026-10-12
📄 earth science

Species Selection for Cerradão Restoration Based on Ecological and Socioeconomic Criteria

This study identifies 38 native Cerradão species with high restoration potential in Mato Grosso do Sul, Brazil, by integrating ecological traits like fire tolerance and seed dispersal with diverse socioeconomic uses such as timber, medicinal, and ornamental applications to guide effective ecological restoration.

João Victor de Lima Pereira, Lorelai Ribeiro Dourado de Figueiredo, Alanis Rodrigues Ramalho, Gabrielli Duarte dos Santo (…)2026-10-12
📄 earth science

Drought Legacies Can Extend to Nutrient Stoichiometry: Relative Potassium Enrichment in Sugar Maple Foliage Outlasts Hydrological Recovery

This study demonstrates that in sugar maple forests, a drought-induced relative enrichment of potassium in foliage persists even after soil moisture recovers, suggesting that tree physiological regulation, rather than soil supply or wood composition, drives long-lasting nutrient stoichiometric legacies.

Martin Simoneau, Audrey Maheu, David Rivest, Annie Desrochers, Philippe Nolet2026-10-12
📄 earth science

Climate-Sensitive and Data-Driven Hydrological Modeling for Transboundary Water Governance in the Tigris-Euphrates Basin

This paper synthesizes hydro-political dynamics and climate-sensitive hydrological data for the Tigris-Euphrates Basin to propose a strategic, data-driven roadmap for transboundary governance that addresses systemic institutional deficits, climate vulnerabilities, and the disproportionate burden on downstream Iraq through legal cooperation, adaptive management, and benefit-sharing mechanisms.

Nadhir Al-Ansari, Nasrat Adamo, Salwan Ali Abed2026-10-12
📄 earth science

Biochar reduces PFAS mobility in contaminated soils: a global meta- analysis

This global meta-analysis demonstrates that biochar consistently reduces PFAS mobility in contaminated soils by a median of 58.2%, with effectiveness strongly dependent on the PFAS molecular structure (favoring long-chain compounds) and soil total organic carbon content, while showing no robust association with biochar dose, pyrolysis temperature, or experimental system.

Behrouz Gholamahmadi, Erlend Sørmo, Gerard Cornelissen2026-10-12
📄 earth science

Impact of Fuel Station Traffic Intensity on Heavy Metal, Polycyclic Aromatic Hydrocarbon, and BTEX Contamination of Soil and Road Dust: Distribution, Source Apportionment, Ecological Status, and Human Health Risk Assessment in Abuja Municipal Area Council, Nigeria

This study in Abuja, Nigeria, reveals that while heavy metal contamination in fuel station soils and road dust poses low ecological risk, polycyclic aromatic hydrocarbons (PAHs) and BTEX compounds present significant health hazards, particularly for children via ingestion, necessitating improved environmental monitoring and emission controls.

Nwanneamaka Asonye, Prosper Abdulai, Anthonet Ezejiofor, Angelines Sosa, Ernest Nnadi, Chideraa Offor, Chiara Frazzoli (…)2026-10-12
📄 earth science

A provenance-aware semantic framework and evidence-aware knowledge graph for micro- and nanoplastic environmental-health evidence

This paper presents a provenance-aware semantic framework and evidence-aware knowledge graph that successfully preserves the contextual details, study-specific inferential limits, and full provenance chains of micro- and nanoplastic environmental-health evidence to enable more accurate cross-study synthesis and future AI-assisted analysis.

Sudeepa Bhattacharyya, Adrija Ghosh, SumanKalyan Maity, Maryam Salehi2026-10-12