Search results for " Augusta basin"

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The key role played by the Augusta basin (southern Italy) in the mercury contamination of the Mediterranean Sea.

2011

The Augusta basin, located in SE Sicily (southern Italy), is a semi-enclosed marine area, labelled as a highly contaminated site. The release of mercury into the harbour seawater and its dispersion to the blue water, make the Augusta basin a potential source of anthropogenic pollution for the Mediterranean Sea. A mass balance was implemented to calculate the HgT budget in the Augusta basin. Results suggest that an average of ∼0.073 kmol of HgT is released, by diffusion, on a yearly basis, from sediments to the seawater, with a consequent output of 0.162 kmol y(-1) to coastal and offshore waters; this makes the Augusta area an important contributor of mercury to the Mediterranean Sea. Owing …

010504 meteorology & atmospheric scienceschemistry.chemical_element010501 environmental sciencesManagement Monitoring Policy and LawStructural basin01 natural sciencesMediterranean seaOcean gyreMediterranean SeaWater Pollution ChemicalSeawater14. Life underwater0105 earth and related environmental sciencescomputer.programming_languagegeographygeography.geographical_feature_categoryPublic Health Environmental and Occupational HealthSedimentGeneral MedicineMercury6. Clean waterMercury (element)Settore GEO/08 - Geochimica E VulcanologiaOceanographychemistryHg sediment Augusta basinItaly13. Climate actionHarbourSeawaterSubmarine pipelinecomputerGeologyWater Pollutants ChemicalEnvironmental MonitoringJournal of environmental monitoring : JEM
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The sea–air exchange of mercury (Hg) in the marine boundary layer of the Augusta basin (southern Italy): Concentrations and evasion flux

2013

Abstract The first attempt to systematically investigate the atmospheric mercury (Hg) in the MBL of the Augusta basin (SE Sicily, Italy) has been undertaken. In the past the basin was the receptor for Hg from an intense industrial activity which contaminated the bottom sediments of the Bay, making this area a potential source of pollution for the surrounding Mediterranean. Three oceanographic cruises have been thus performed in the basin during the winter and summer 2011/2012, where we estimated averaged Hg atm concentrations of about 1.5 ± 0.4 (range 0.9–3.1) and 2.1 ± 0.98 (range 1.1–3.1) ng m −3 for the two seasons, respectively. These data are somewhat higher than the background Hg atm …

Mediterranean climatePollutionBiogeochemical cycleEnvironmental EngineeringMercury evasion flux Atmospheric mercury concentrations Gaseous elemental mercury Sea–air evasion Marine boundary layer Augusta basinHealth Toxicology and Mutagenesismedia_common.quotation_subjectchemistry.chemical_elementStructural basinFlux (metallurgy)Sea airEnvironmental ChemistrySeawatermedia_commonAir PollutantsAtmospherePublic Health Environmental and Occupational HealthMercuryGeneral MedicineGeneral ChemistryPollutionMercury (element)OceanographyItalychemistryEnvironmental scienceSeasonsBayWater Pollutants ChemicalEnvironmental MonitoringChemosphere
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