Microbial dissimilatory sulfate reduction to sulfide is a predominant terminal pathway of
organic matter mineralization in the anoxic seabed. Chemical or microbial oxidation of the …

High concentrations of arsenic (As) in groundwater threaten the environment and public
health. Geogenically, groundwater As contamination predominantly occurs via its …

Redox-driven biogeochemical element cycles play a central role in converting organic
matter in aquatic ecosystems. They also perform key functions such as removing nitrate …

Almost the entire seafloor is covered with sediments that can be more than 10 000 m thick
and represent a vast microbial ecosystem that is a major component of Earth's element and …

Hydrogen peroxide (H2O2) and hydroxyl radical (• OH) production during oxygenation of
reduced iron (Fe (II)) and natural organic matter (NOM) in the subsurface has been …

The anaerobic oxidation of methane (AOM) in marine ecosystems is ubiquitous and largely
coupled to sulfate reduction. In contrast, the role of AOM in terrestrial environments and the …

Although sulfur cycling in acid mine drainage (AMD)-contaminated rice paddy soils is critical
to understanding and mitigating the environmental consequences of AMD, potential sources …

Iron (Fe) minerals constitute a major control on organic carbon (OC) storage in soils and
sediments. While previous research has mainly targeted Fe (oxyhydr) oxides, the impact of …

Dissolved sulfide tends to species transformation and loss upon leaving the matrix, thus the
development of a practical on-site determination of sulfide is crucial for environmental …

Transformation of microplastics in aquatic environments and engineered systems (eg,
wastewater treatment plants) significantly affects their transport, fate and effects. Here, we …