Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 284, Issue -, Pages 130-135Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2014.11.008
Keywords
Diethylene glycol risk assessment; Long-term toxicity; Marine species; Predicted no-effect concentration; Predicted environmental concentration
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Diethylene glycol (DEG) is a chemical compound used during offshore oil activities to prevent hydrate formation, and it may be released into the sea. A full ecotoxicological characterization is required according to European and Italian regulations for chemical substances. We have evaluated long-term toxic effects of DEG on indicator species of the marine environment as algae (Phaeodactylum tricornutum), crustaceans (Anemia franciscana), molluscs (Tapes philippinarum) and fish (Dicentrarchus labrax). A range of no observed effect concentrations (365-25,000 mg/L) has been identified. Based on the toxicity results and the ratio between predicted environmental concentration and predicted no-effect concentration, we have estimated the maximum allowable value of DEG in the marine environment. (C) 2014 Elsevier B.V. All rights reserved.
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