Microplastic-derived dissolved organic matter modulates microbial nitrate and arsenate reduction: Extracellular electron transfer and intracellular metabolic responses.
Photoaged microplastics release dissolved organic matter (MPs-DOM) with redox activity that may influence coupled contaminant transformations under anoxic conditions. Here, we investigated DOM derived from polystyrene (PS) and polylactic acid (PLA) after accelerated UV/H2O2 oxidation and examined its effects on concurr...