Levels and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in sediments from Lenga Estuary, central Chile

► In Lenga estuary, PAH concentrations were high and similar to others highly PAH polluted sites of the world. ► However, the ecotoxicological evaluation based on international SQG indicated no ecotoxicological risk for marine organisms, benthic species. ► SQG are valuable and important tools to predict the toxicity related to a contaminant mixture.