📄 earth_science

Hydrogeochemical and redox controls on nitrate and arsenic co-occurrence in the western Kansas High Plains Aquifer (USA): a composite health risk assessment and the case for risk-informed private well governance

This study reveals that while most private wells in western Kansas comply with current regulatory standards for nitrate and arsenic, a composite health risk assessment demonstrates that nearly 85% pose moderate-to-high pediatric risks and over 25% exceed acceptable cancer thresholds, thereby supporting the implementation of risk-informed governance with stricter, health-based thresholds for private well management.

Jonathan Kuffour Owusu¹, Thomas Schafer¹, Jeanne Sumrall², Richard Lisichenko³2026-08-11
📄 earth_science

Period-dependent decoupling of light absorption and absorption efficiency in methanol-soluble BrC in Southwest China​

This study reveals a period-dependent decoupling of light absorption and absorption efficiency in methanol-soluble BrC over Southwest China, where enhanced absorption during the late dry season is driven primarily by increased organic aerosol loading from biomass burning rather than higher intrinsic absorptivity, as aging processes during long-range transport simultaneously produce weakly absorbing materials that reduce mass-normalized efficiency.

Zhuoer Dong, Xiao Guo, Yali Liu, Minxia Shen, Yifan Zhang, Lu Li, Yue Cao, Yingkun Jiang, Qian Wang, Zirou Zeng, Wenting (…)2026-08-11
📄 earth_science

Diagnosing Spatial Disparities in Urban Flood Burden through Hydro- Environmental Normalization in Jakarta, Indonesia

This study introduces the Hazard-Normalized Flood Burden Deviation (HNFBDev) framework to diagnose spatial disparities in Jakarta's urban flood burden by quantifying the deviation between observed and environmentally expected outcomes, thereby identifying locations where flood impacts are unusually high or low relative to hydro-environmental conditions.

Rifky Husaini, Perdinan Perdinan, Novindra Novindra2026-08-11
📄 earth_science

Managed pasture combines net methane uptake with the lowest soil greenhouse gas balance in a tropical savanna comparison

In a Brazilian Cerrado comparison, long-established managed pasture demonstrated the lowest soil greenhouse gas balance by acting as a net methane sink and emitting less nitrous oxide than native vegetation or integrated crop-livestock systems, a performance attributed to continuous grass cover, better soil aeration, and optimized nitrogen timing.

Vicente Batista Souza Junior, Francisco Paulo Amaral Junior, Camila Eduarda Souza de Sousa, Dayanne Dos Santos Neres, Br (…)2026-08-11
📄 earth_science

Market Pull or Policy Push? A Comparative Bibliometric Analysis of Diverging Research Trajectories in Yellowfin Tuna (Thunnus albacares) and Bluefin Tuna (Thunnus spp.)

This bibliometric study reveals that while bluefin tuna research is larger and driven by aquaculture and reproductive biology led by Japan, yellowfin tuna research is growing faster and focused on capture-fishery challenges led by the US, China, and Indonesia, reflecting a divergence between policy-push and market-pull research trajectories.

Irfan Habiburrahman¹2026-08-11
📄 earth_science

Investigation of interlayer interference regulation in offshore high-water-cut reservoirs with horizontal-vertical combined well patterns

This study demonstrates that combining well pattern adjustments with separate-layer injection–production is more effective than simple production shutdowns for regulating interlayer interference and improving recovery in offshore ultra-high water-cut heavy oil reservoirs by mobilizing medium- and low-permeability layers and reducing preferential flow in high-permeability zones.

Kun Qian, Longzhi Wu, Yanfeng He, Xiangji Dou, Xingbang Meng Meng, Shenglai Yang2026-08-11