Using slow-release permanganate candles to remediate PAH-contaminated water

► We quantified the efficacy of slow-release permanganate-paraffin candles to degrade and mineralize PAHs. ► 14C-labeled PAHs were used to quantify both adsorption and transformation. ► Permanganate-treated PAHs were more biodegradable in soil microcosms. ► A flow-through candle system was used to quantify PAH removal in urban runoff.