Search results for " Background level"

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Mercury levels in sediments of central Mediterranean Sea: a 150+ year record from box-cores recovered in the Strait of Sicily.

2006

To evaluate the degree of anthropogenic mercury pollution, Hg contents have been measured for box-core sediments sampled along three nearshore-offshore transects in the Strait of Sicily and well constrained for their mineralogy, bulk geochemistry and TOC%. Hg values are generally low (from 15 to 70 microg kg(-1)); however, depth profiles clearly display upcore rising concentrations (up to 202 microg kg(-1) near the SE Sicily coast) that are attributed to anthropogenic load. Based on (210)Pb chronology, these trends are more dramatic across the last 20-30 years. Geogenic influence is thought to explain some anomalies related to volcanic emission and geothermal activity. Combined effects due …

PollutionGeologic SedimentsEnvironmental EngineeringHealth Toxicology and Mutagenesismedia_common.quotation_subjectchemistry.chemical_elementMediterranean seaMediterranean SeaEnvironmental ChemistryTransectGeothermal gradientmedia_commongeographygeography.geographical_feature_categoryStrait of Sicily Box-core sediments Mercury Background level 210Pb chronologyPublic Health Environmental and Occupational HealthGeneral MedicineGeneral ChemistryMercuryPollutionMercury (element)OceanographychemistryVolcanoRadiometric datingGeologyChronologyChemosphere
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New Interpretative Scales for Lichen Bioaccumulation Data: The Italian Proposal

2019

The interpretation of lichen bioaccumulation data is of paramount importance in environmental forensics and decision-making processes. By implementing basic ideas underlying previous interpretative scales, new dimensionless, species-independent &ldquo

Pseudevernia furfuraceaPollutionBackground levelAtmospheric Science010504 meteorology & atmospheric sciencesmedia_common.quotation_subjectair pollutionEvernia prunastritrace elementsAir pollution; Background levels; Biomonitoring; Evernia prunastri; Flavoparmelia caperata; Lichen transplants; Native lichens; Pseudevernia furfuracea; Trace elements; Xanthoria parietina; Environmental Science (miscellaneous)native lichenslcsh:QC851-999010501 environmental sciencesEnvironmental Science (miscellaneous)<i>Flavoparmelia caperata</i>01 natural sciencesnative lichenNative lichenXanthoria parietinaFlavoparmelia caperataBiomonitoringPseudevernia furfuraceaLichen0105 earth and related environmental sciencesmedia_commonAir pollution; Background levels; Biomonitoring; Evernia prunastri; Flavoparmelia caperata; Lichen transplants; Native lichens; Pseudevernia furfuracea; Trace elements; Xanthoria parietinaFlavoparmelia caperatabiologyEvernia prunastriBiomonitoring; native lichens; lichen transplants air pollution; trace elements; background levels; Flavoparmelia caperata; Xanthoria parietina; Evernia prunastri; Pseudevernia furfuracea<i>Evernia prunastri</i>trace elementbiology.organism_classificationbackground levelXanthoria parietinaLichen transplantlichen transplantsbackground levelsBioaccumulation<i>Xanthoria parietina</i>Biomonitoring<i>Pseudevernia furfuracea</i>Trace elementEnvironmental sciencelcsh:Meteorology. ClimatologyPhysical geographylichen transplants air pollution
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