Essays about: "Total organic matter TOC"
Showing result 11 - 15 of 20 essays containing the words Total organic matter TOC.
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11. Long-term trends in bottom water chemistry of Swedish lakes
University essay from SLU/Dept. of Aquatic Sciences and AssessmentAbstract : Long-term monitoring of lake water is essential for tracking local and long-range effects of anthro-pogenic pressure and to inform policy aiming at mitigating human environmental impacts. Swedish reference lakes are recovering from acidification; are subject to climate change and increasing inputs of terrestrial dissolved organic matter (DOM). READ MORE
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12. Membrane screening to identify optimal properties when separating organic matter from Bolmen water
University essay from Lunds universitet/Kemiteknik (CI)Abstract : In many places across the northern hemisphere, drinking water treatment plants (WTPs) need to avert the effects of deteriorating quality in surface water sources caused by increasing lev-els of natural organic matter (NOM). The two major factors responsible for this phenomenon, also called brownification, are the greenhouse effect and changes in soil acidification. READ MORE
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13. Spatiotemporal reconstructions of black carbon, organic matter and heavy metals in coastal records of south-west Sweden
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : This study presents reconstructions of black carbon (BC), including spheroidal and amorphous carbonaceous particles (SCP and ACP), organic matter (OM; total organic carbon, TOC; total nitrogen, TN; total sulfur, TS), and heavy metals (Fe, Zn, Pb, Cu, As and Hg) in coastal sediments off the south-west coast of Sweden. Sediment records from eight stations along a north-south transect off the south-west of Sweden were retrieved. READ MORE
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14. Tracing late Holocene changes in lake-water total organic carbon : A multi-proxy approach based on sediment bio-geochemistry and a faecal biomarker
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : Long-term dynamics of lake-water total organic carbon (LW-TOC) concentrations in freshwater lakes provide an important perspective on the recent increases in LW-TOC observed in many of these systems and may assist with the identification of natural and anthropogenic drivers of change. This study examines how LW-TOC in Dragsjön, a lake situated in an area with a long history of anthropogenic land use, has changed in response to natural and anthropogenic perturbations throughout the Holocene. READ MORE
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15. Palaeoenvironmental reconstruction of catchment processes in sediments from Bolgoda Lake, Sri Lanka
University essay from Linköpings universitet/Tema Miljöförändring; Linköpings universitet/Filosofiska fakultetenAbstract : Bottom sediment is an archive of the historical changes in a lake and its catchment. This thesis is apalaeoenvironmental reconstruction of catchment processes in Bolgoda Lake situated in western SriLanka. We studied a sediment core retrieved from this lake. READ MORE