Dataset containing concentration of accumulated pollutants in 29 stormwater biofilters in the USA

This dataset presents the concentrations of a wide range of stormwater pollutants accumulated in filter materials and forebays of 29 bioretention systems having been in long-term operation for urban stormwater treatment in Ohio, Michigan, and Kentucky (USA). The study investigates pollutants including metals, microplastics, and organic micropollutants (PAHs, phthalates, alkyl phenols, PCBs, as well as 35 PFASs and their precursors).