Search results for "Background levels"

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Paleolimnological evidence of environmental changes in seven subtropical reservoirs based on metals, nutrients, and sedimentation rates

2021

Made available in DSpace on 2022-04-28T19:40:54Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-11-01 Paleolimnological research can shed light on a broad range of environmental concerns; however, such studies are scarce in reservoirs. To address this lack of knowledge, a paleolimnological investigation was conducted to determine historical changes in sedimentation rates (SR), using 210Pb geochronology, and concentrations of nutrients and metals (Cr, Cu, Ni, Pb, Zn, Al, Mn, Fe) in seven subtropical reservoirs (São Paulo, Brazil). Sediment cores were collected in the dam areas. Increasing SR was observed in all reservoirs and was mainly attributed to eutrophication and changes in land…

Phosphoruschemistry.chemical_elementSedimentBackground levelsEcological RiskSubtropicsSedimentationContaminationNutrientchemistryWastewaterContaminationEnvironmental chemistryEnvironmental scienceEutrophicationMetal MigrationCopperEarth-Surface Processes
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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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