Toxicity evaluation of diethylene glycol and its combined effects with produced waters of off-shore gas platforms in the Adriatic Sea (Italy): Bioassays with marine/estuarine species

► Toxicity assessment of diethylene glycol with ten marine/brackish organisms. ► Study of toxic effects of diethylene glycol in co-exposure with produced water. ► Diethylene glycol shows additive or synergic effects with produced water. ► A safe threshold concentration for DEG was established by short-term bioassays.