title: Ecotoxicity of diethylene glycol and risk assessment for marine environment.
abstract: 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 (Artemia 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.
authors.affiliation: Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 60, 00144 Rome, Italy. Electronic address: loredana.manfra@isprambiente.it.
authors.forename: L
authors.initials: L
authors.lastname: Manfra
authors.affiliation: Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 60, 00144 Rome, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Tornambè
authors.affiliation: Regional Agency for Environmental Protection in Emilia-Romagna, ARPA ER, Ferrara, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Savorelli
authors.affiliation: University of Tor Vergata, Rome, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Rotini
authors.affiliation: Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 60, 00144 Rome, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Canepa
authors.affiliation: Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 60, 00144 Rome, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Mannozzi
authors.affiliation: Institute for Environmental Protection and Research (ISPRA), Via Vitaliano Brancati 60, 00144 Rome, Italy.
authors.forename: A M
authors.initials: AM
authors.lastname: Cicero
mesh_terms: D000818:Animals; D001156:Artemia; D001492:Bass; D017377:Diatoms; D054750:Ecotoxicology; D004777:Environment; D004784:Environmental Monitoring / Q000379:methods*; D005026:Ethylene Glycols / Q000737:chemistry*; D008974:Mollusca; D018570:Risk Assessment; D018675:Toxicity Tests; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D005026:Ethylene Glycols; D014874:Water Pollutants, Chemical; C013484:diethylene glycol
keywords: Diethylene glycol risk assessment; Long-term toxicity; Marine species; Predicted environmental concentration; Predicted no-effect concentration