Essays about: "Ekoln"

Showing result 1 - 5 of 14 essays containing the word Ekoln.

  1. 1. Hydrodynamic modelling of fate and transport of natural organic matter and per- and polyfluoroalkyl substances in Lake Ekoln

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Frida Ekman; [2021]
    Keywords : Ekoln; Natural organic matter NOM ; Total organic matter TOC ; Colour; degradation; sedimentation; photooxidation; PFAS; MIKE 3 FM; Ekoln; naturligt organiskt material NOM ; totalt organiskt kol TOC ; färg; nedbrytning; sedimentation; foto-oxidation; PFAS; MIKE 3 FM;

    Abstract : Societies are facing great challenges with obtaining a good quality and quantity of drinking water in the context of climate change. Increases in natural organic matter (NOM) and per- and polyfluoroalkyl substances (PFAS) have been observed in lakes and drinking water the past years, which is of great concern for water treatment plants in Sweden. READ MORE

  2. 2. Occurrence and fate of organic micropollutants (OMPs) in Lake Mälaren

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Anna-Lena Rehrl; [2019]
    Keywords : multi-residue method; UPLC-MS MS; SPE; organic micropollutants; surface water;

    Abstract : The main objective of this study is to investigate the occurrence and fate of organic micropollutants (OMPs) in surface water in Lake Mälaren over one year, including their seasonal variations, correlations between compounds, spatial and vertical distribution. The water samples were enriched with solid phase extraction (SPE) and subsequently analyzed by ultra-high pressure liq-uid chromatography tandem mass spectrometry (UPLC-MS/MS). READ MORE

  3. 3. The effects of population growth on Ecosystem services in lake Ekoln : A multi-proxy data analysis of a lake core and historical records.

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Douglas Kilpatrick; [2016]
    Keywords : Ecosystem services; Population growth; Species diversity; Water quality; Environmental reconstruction.;

    Abstract : Throughout human history man has utilized the environment to varying degrees, depending on technology and population. These ¨ecosystem services¨ have suffered sustained degradation over the centuries, resulting in large investments having to be made to prevent and reverse further changes to the environment. READ MORE

  4. 4. Reconstructing the historic input of mercury in Lake Ekoln : A long-term (millennia) perspective derived from a sediment core

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Clara Rojas Rodríguez; [2015]
    Keywords : mercury; sediments; aquatic ecosystem; Lake Ekoln.;

    Abstract : Anthropogenic activities are often considered to be the main sources of mercury (Hg) found in aquatic systems. The aim of this study was to reconstruct the historic input of Hg to a large lake (Lake Ekoln) situated downstream the City of Uppsala using a dated sediment core. READ MORE

  5. 5. Agricultural history and its effect on Lake Ekoln, central Sweden : A study based on historical maps and the use of sediment as a proxy for lake-water phosphorus

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Joel Avenius; [2015]
    Keywords : historical maps; sediment inferred phosphorus; eutrophication; agriculture;

    Abstract : Agriculture and the use of arable land have long been assumed to be one of the key drivers behind eutrophication of lakes. However, little is known about how early agriculture has affected lakes in the past. READ MORE