Contaminant transport refers to the physical and chemical processes governing the movement and fate of pollutants within environmental media such as groundwater, surface water, soil, and the atmosphere. It encompasses advection, dispersion, diffusion, sorption, volatilization, degradation, and transformation reactions that control contaminant distributions and concentrations over space and time. In research, contaminant transport is described by coupled partial differential equations derived from mass conservation, often incorporating multiphase flow, reactive transport, heterogeneity, and scale-dependent parameters. Accurate characterization and modeling of contaminant transport are critical for risk assessment, remediation design, and prediction of long-term contaminant plume evolution in engineered and natural systems.
A group of man-made chemicals are accumulating across the River of Grass—raising questions about potential impacts to water quality and ongoing restoration efforts.
Environment
Oct 16, 2025
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Researchers from the UAB and the UB are working with Indigenous Amazonian communities to understand health issues from a holistic perspective, including people, wildlife and the ecosystem.
Environment
Oct 7, 2025
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21
Soil contamination is a global environmental concern, with toxic metals and metalloids from industrial activities persisting as long-term pollutants. Arsenic (As), although naturally occurring, becomes widespread when mobilized ...
Ecology
Oct 6, 2025
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20
Beneath our feet, an invisible world of electron exchanges quietly drives the chemistry that sustains ecosystems, controls water quality, and even determines the fate of pollutants.
Earth Sciences
Sep 26, 2025
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49
One way people ingest a group of toxic chemicals known as PFAS is through consuming produce, dairy and meat products that have been exposed to contaminated soil and irrigation water. Some guidance is available on how growers ...
Ecology
Sep 18, 2025
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25
Canada's government and health science sectors should commit to researching the health effects of oil sands tailings, as previous research suggests that air, water, and land contaminations negatively affect local people's ...
Environment
Sep 15, 2025
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26
Critical wildlife habitats are exposed to pollution risk in the seas off the southern United States, with implications for human health and food security. "Most of the pollution comes from rivers and not from wastewater treatment ...
Environment
Sep 10, 2025
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36
Scientists at the University of Manchester are calling for the creation of a global network of air monitoring stations to track the movement of airborne plastic pollution, which may be traveling further and faster around ...
Environment
Sep 5, 2025
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Researchers from Woods Hole Oceanographic Institution (WHOI) and Pohang University of Science and Technology (POSTECH) have traced the atmospheric journey of industrial mercury emissions from Asia into the open ocean food ...
Environment
Sep 2, 2025
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38
A new study led by researchers from the Aerospace Information Research Institute (AIR) of the Chinese Academy of Sciences has for the first time mapped the long-term, large-scale transport pathways of PM2.5 pollution across ...
Earth Sciences
Aug 27, 2025
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26
