Chemosphere

Mercury (Hg), a global pollutant of widespread concern, poses significant threats to environmental and ecological health. Upland ecosystems are critical in the global Hg cycle, serving as major long-term sinks for atmospheric Hg, largely through vegetation mediated dry deposition. Despite this importance, substantial knowledge gaps remain on the global distribution patterns of Hg, particularly it…

This study for the first time investigated the effects of poultry litter containing cypermethrin (740 μg kg^-1 d.w.) and metals on Folsomia candida, assessing lethality, behavior, reproduction, and oxidative stress biomarkers, which were combined into an Integrated Biomarker Response (IBR) assessment. The sublethal effects covered application rates equivalent to those reported for diffe…

Aluminum (Al) hydroxides and hydroxysulfates commonly precipitate and sequester rare earth elements (REE) at pH 4.5 to 6 within acid mine drainage (AMD) treatment systems. However, sulfate, the predominant anion in AMD, can alter Al solubility and REE mobility through aqueous and surface complexation reactions. Here, we apply aqueous and surface speciation models to predict Al precipitation and p…

Plankton plays a key role in the bioconcentration and biomagnification of mercury (Hg) in marine food webs. Few studies have investigated the driving factors in coastal plankton food webs. Total-mercury (tHg) and total methylated-mercury (MeHg) were measured in seawater, size-fractioned phytoplankton (0.7 to 60 μm), zooplankton (60 to >2000 μm) and mysids, sampled monthly between February 2020 an…

Despite growing scientific and public awareness and concern over microplastics (MPs) as emerging contaminants, human exposure in indoor environments remains poorly understood. This study investigates seasonal variation of MP concentrations and characteristics in five indoor microenvironments over a 12-month monitoring period for the first time, evaluating impacts on human exposure via inhalation …