GIACCO , Elisabetta

In the framework of the Risk Assessment procedure for the ecotoxicological evaluation of compounds used in the aquatic environment, tests with target species must be carried out. This paper reports the results concerning the evaluation of the acute toxicity of F-500 micelle encapsulator (Hazard Control Technologies Inc., Fayetteville, GA, USA)...

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Cnidarians exert a meaningful influence on human activities and health being able to produce several local and systemic symptoms on man. Mediterranean jellyfish are scarcely poisonous, but during outbreaks the impact of some of them, such as the Scyphomedusa Pelagia noctiluca, is anyhow noteworthy. As some compounds containing lanthanum ions...

Heavy metal pollution of coastal waters is a subject of concern in the management of the marine environment. Therefore, the protection of such environments needs the use of biological indicators able to support physico-chemical monitoring. Harpacticoid copepods can be suitable test species for their wide distribution, for their key-position...

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The Scyphomedusa Pelagia noctiluca is known to be an harmful species able to cause contact dermatitis and also systemic symptoms in sensitive subjects. Taking into account that some compounds are known to be protective agents against jellyfish venoms, in this research the protection of non-cytotoxic zinc sulfate concentrations was evaluated on...

Surfactants are synthetic chemicals utilized as detergents and cleaning products or as dispersants and emulsifiers to face water pollution. In spite of this, due to their wide diffusion, surfactants can induce water and soil pollution, notably in developed countries, and can be toxic to organisms. Taking into account that the assessment of new...

Marine sediments play an important role in the accumulation-storage and/or release of contaminants in seawaters; sediment bioassays provide for general information on pollutant bioavailability. This work points out the importance to utilize free and immobilised (Naalginate) marine algae for the ecotoxicological evaluation of metals (Cd, Zn, Cu)...

The toxicity of Cnidaria is a subject of concern due to its influence on humans. In particular, jellyfish blooms can highly affect human economical activities, such as bathing, fishery, tourism, etc., as well as the public health. Stinging structures of Cnidaria (nematocysts) produce remarkable effects on human skin, such as erythema, swelling,...

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Cnidarians are numbered among the most venomous organisms. Their venoms are contained in intracellular capsules, nematocysts, which inject the content into preys/attackers through an eversion system resembling a syringe needle. Several cnidarian venoms have activity against the nervous system, being neurotoxic, or affect other systems whose...

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External otitis is a diffuse inflammation around the external auditory canal and auricle, which is often occurred by microbial infection. This disease is generally treated using antibiotics, but the frequent occurrence of antibiotic resistance requires the development of new antibiotic agents. In this context, unexplored bioactive natural...

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In the framework of the "Risk Assessment" procedure for the ecotoxicological evaluation of compounds used in the aquatic environment, tests with target species have been carried out. This paper reports the results concerning the evaluation on cladocerans Daphnia magna of the acute toxicity of F-500 micelle encapsulator (Hazard Control Inc.,...

Marine sediments are a reservoir of organic and inorganic pollutants, that can be adsorbed in suspended particulate matter and can occur in higher concentration in whole sediments than in the water column; so, the evaluation of sediment ecotoxicity provides for general information on pollutant bioavailability. Microalgae are widely employed in...

Histological, scanning electron microscopic and immunohistochemical studies were performed on the gills of juvenile gilthead (Sparus aurata L.) exposed to various concentrations of three anionic detergents: sodium dodecyl sulphate (SDS), safety sea cleaner 2 (SSC2), and FINASOL OSR2, in short term (96 h) and chronic (28 days) experiments....

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In questa nota vengono riportati i risultati di una sperimentazione effettuata per la messa a punto, in laboratorio, di una procedura di bonifica di suoli inquinati da idrocarburi petroliferi. Le prove di decontaminazione sono state effettuate su suoli artificiali trattati con diesel commerciale e con un tensioattivo "micellare" denominato...

Many million metric tons of crude and refined oil enter the environment each year as a result of anthropogenic sources such as oil spills. Dispersant products are designed to reduce the damages on marine ecosystem when an oil spill occurs. In the framework of a recent project funded by the Italian Ministry of the Environment (TAXA project),...