Essays about: "marine pollution"

Showing result 21 - 25 of 86 essays containing the words marine pollution.

  1. 21. Biochar-based thin-layer capping of contaminated sediment in Burefjärden, northern Sweden : Assessment of biochar mixed into four structural materials for preventing release of trace elements from sediment to water

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Nathalie Pantzare; [2021]
    Keywords : biochar; contaminated sediment; remediation; thin-layer capping;

    Abstract : Coastal areas around the world have been recognized as largely impacted by anthropogenic activities resulting in pollution of marine sediments. In Sweden, surveys conducted along the coastline of the Bothnian Bay have identified a total area of about 29 km2 as fiber rich sediments. READ MORE

  3. 22. Development of northern pike (Esox lucius) populations in the Baltic Sea, and potential effects of grey seal (Halichoerus grypus) predation

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Rebecka Svensson; [2021]
    Keywords : diet analysis; ; marine mammals; predator-prey; socio-economic; sport fishing; recreational fisheries;

    Abstract : Worldwide, marine mammal populations are increasing after considerable efforts to turn the downward trends caused by hunting, accidental mortality and pollution. The ecosystem effects from the increases of these top predators may be pronounced, but are in most cases poorly known. READ MORE

  4. 23. "THREATENED AND THREATENING SEAS" Children’s Perceptions of the Marine Environment and Environmental Attitudes towards Marine Pollution in Kuta, Lombok

    University essay from

    Author : Roos van der Meijden; [2020-10-19]
    Keywords : Early childhood learners; environmental attitudes; environmental perspectives; human-nature relation; marine pollution;

    Abstract : Aim: The aim of this study was to investigate early childhood learners’ (5-8 years old) perceptions of the marine environment (beach and sea) and their environmental attitudes towards marine pollution through an educational intervention consisting of a drawing exercise and an in-class discussion. Theory: Social-cognitive theory was used from which to explore environmental perspectives environmental attitudes, and the human-nature relation/connection. READ MORE

  5. 24. Temporal and spatial trends of heavy metal leakage from acid sulfate soils : Leakage of Ni, Zn, Cu and Fe to freshwater and marine sediments, North-eastern Sweden

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

    Author : Bella Blomkvist; [2020]
    Keywords : acid sulfate soils; leaching; Persöfjärden; sulfide oxidation; metal pollution;

    Abstract : Acid Sulfate soils (AS) are recognized for being a source of acidity in freshwaters in America, Europe, Australia, and Asia. Apart from the problematic acid leachate, AS soil serves as a possible source of toxic heavy metals in freshwaters, a problem which has received far less attention than problems related to acid leachate. READ MORE

  6. 25. Characterization of microplastics in storm water in Örebro, Sweden

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Isabelle Karlsson Sjögren; [2020]
    Keywords : Chemical characterization; microplastic; pollution; storm water; visual characterization;

    Abstract : Microplastic is a widespread pollutant in marine and fresh water systems. A major pathway by which microplastics end up in these systems is via storm water. Storm water is generated as precipitation drain off of impenetrable surfaces like paving. READ MORE