This research uses freshwater mussels as bioindicators to investigate water quality in Darby Creek. Community science data revealed links between elevated chloride pollution, likely from road salt, and declining mussel populations. The discovery of a healthy mussel population highlights both the importance of local monitoring and opportunities for targeted watershed restoration.

Road salt, widely used for winter safety, contaminates waterways and drinking supplies by increasing sodium and chloride levels. This year-long study of Pennsylvania watersheds found consistent exceedances of EPA guidelines, posing risks to human health and aquatic ecosystems. The research highlights the need to reduce salt use and adopt more sustainable deicing practices.