Enhancement of AhR-mediated activity of selected pollutants and their mixtures after interaction with dissolved organic matter

► 7 AhR-active hydrophobic organic compounds (HOCs) + mixtures. ► HOCs show adverse effects in the environment. ► 12 dissolved organic matter (DOM) samples, naturally occurring in the environment. ► In vitro assay showed enhancement of AhR-mediated activity of HOCs in presence of DOM.