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.
Across Europe, many banks alongside motorways are planted with grass to stabilize soil and keep roadside landscapes tidy.
Environment
Mar 22, 2026
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26
Every time we do a load of laundry, tiny fibers of polyester escape from our clothes and slip down the drain. These microfibers, so small they can be invisible to the naked eye, are among the most common forms of microplastic ...
The São Paulo Metropolitan Area (SPMA) in Brazil has approximately 22 million inhabitants and consumes an average of 61.6 cubic meters (61,600 liters) of water per second. Although nearly the entire public water supply originates ...
Environment
Mar 20, 2026
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11
A new study from the University of British Columbia has found that artificial turf fields across Metro Vancouver leach 6PPD-quinone, a chemical known to kill coho salmon, into municipal stormwater systems—and the contamination ...
Plants & Animals
Mar 18, 2026
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62
Natural fibers promoted as sustainable alternatives to plastic, including cotton and wool, have been found preserved in a U.K. lake for more than a century—challenging assumptions that they quickly biodegrade in the environment. ...
Environment
Mar 17, 2026
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18
Energy-from-waste facilities are often positioned as a cleaner alternative to landfill, transforming rubbish into electricity and reducing the UK's waste burden. But new research suggests that there may be a hidden cost to ...
Environment
Mar 17, 2026
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6
Pesticides used in pet flea treatments occur widely in Welsh rivers and were detected in over three quarters of river water samples, finds new research by Cardiff University and Natural Resources Wales. The study found that ...
Environment
Mar 15, 2026
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18
Leafy vegetables like lettuce are readily available in grocery stores and often seen as a healthy food choice. As researchers work to understand how emerging contaminants behave in plants, new research is shedding light on ...
Agriculture
Mar 7, 2026
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84
A five-year study on California's Central Coast, led by the U.S. Food and Drug Administration and the Western Center for Food Safety at the University of California, Davis, is helping scientists better understand how harmful ...
Molecular & Computational biology
Mar 5, 2026
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12
Canada's drinking water can remain at risk long after wildfires burn out, according to a UBC-led global review that found water-quality impacts often emerge months or years later—not just immediately after a fire. Researchers ...
Environment
Mar 4, 2026
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18
