The biotransformation of arsenic is highly relevant to the arsenic biogeochemical cycle.
Identification of the molecular details of microbial pathways of arsenic biotransformation …

The mineral-organo composites control the speciation, mobility and bioavailability of heavy
metals in soils and sediments by surface adsorption and precipitation. The dynamic changes …

Organic matter is important for controlling arsenic reduction and release under anoxic
conditions. Humic substances (HS) represent an important fraction of natural organic matter …

Chemical oxidation of As (III) by iron (Fe) oxyhydroxides has been proposed to occur under
anoxic conditions and may play an important role in stabilization and detoxification of As in …

Aqueous arsenic speciation, or the chemical forms in which arsenic exists in water, is a
challenging, interesting, and complicated aspect of environmental arsenic geochemistry …

Dissimilatory As (V)(arsenate)-reducing bacteria may play an important role in arsenic
release from anoxic sediments in the form of As (III)(arsenite). Although respiratory arsenate …

Arsenic (As) in soils and sediments is commonly mobilized when anoxic conditions promote
microbial iron (Fe) and As reduction. Recent laboratory studies and field observations have …

Microorganisms are abundant in many surface and near-surface geochemical
environments. They interact with arsenic through a variety of mechanisms, including …

Wildfires burning in watersheds that have been mined and since revegetated pose unique
risks to downstream water supplies. A wildfire near Boulder, Colorado, that burned a …

Over several decades, arsenic (As) toxicity in the biosphere has affected different flora,
fauna, and other environmental components. The majority of these problems are linked with …