Scientists tested whether a type of fungus called Trametes versicolor could break down nicotine pollution in wastewater. They found that the fungus successfully removed 80-99% of nicotine, especially when grown at comfortable temperatures (25°C) and neutral pH levels in wastewater-like solutions. This research suggests fungi could offer an affordable, environmentally-friendly way to clean up nicotine contamination in water systems, which is important since traditional wastewater treatments don’t completely remove nicotine.