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Articles by Federica Savorelli in JoVE
JoVE General
Långsiktig Dödligt toxicitetstest med Crustacean Artemia franciscana
1Department of Environmental Quality Monitoring, Institute for Environmental Protection and Research, 2Regional Agency for Environmental Protection in Emilia-Romagna
Denna studie handlar om utveckling och standardisering av en värdefull metodologisk protokoll för att bestämma lång sikt (14 dagar) letal toxicitet som utövas av kemiska ämnen, industriell avloppsvatten eller avlopp och flytande miljöprover på saltvatten kräftdjur,
Other articles by Federica Savorelli on PubMed
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
Diethylene glycol (DEG) is commonly used to dehydrate natural gas in off-shore extraction plants and to prevent formation of gas hydrates. It may be released into the sea accidentally or in discharged produced waters (PWs). PWs samples from off-shore gas platforms in the Adriatic Sea (Italy) have been used in this study. The objectives of the study were: a) to evaluate the toxicity of DEG for marine organisms; b) to evaluate if a high DEG content in PWs may alter their toxicity; c) to verify whether the DEG threshold concentration established by the Italian legislation (3.5 g/l) for PWs discharged at sea is safe for marine environment. Ten different species (Vibrio fischeri, Phaeodactylum tricornutum, Dunaliella tertiolecta, Brachionus plicatilis, Artemia franciscana, Tigropus fulvus, Mytilus galloprovincialis, Crassostrea gigas, Tapes philippinarum and Dicentrarchus labrax) have been exposed to DEG; four of these species were also exposed to PWs in combination with DEG. The results showed that: a) DEG is not toxic at levels normally detected in Adriatic PWs; b) DEG in combination with PW showed mainly additive or synergistic effects; c) short-term bioassays showed that the DEG limit of 3.5 g/l could be acceptable.
