Sökning: "microplastics"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet microplastics.

  1. 1. Microplastics in the aquatic environment: Insights into biological fate and effects in fish

    Detta är en avhandling från Göteborgs universitet

    Författare :Giedrė Ašmonaitė; Göteborgs universitet.; Gothenburg University.; [2019]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microplastics; nanoplastics; plastic pollution; effects; fish; chemical mixtures; ecotoxicology;

    Sammanfattning : According to the United Nations, plastic pollution in the natural environment has been identified as one of the biggest environmental challenges of this century and has become a cause for an emerging international concern. It has been predicted that up to 12 million tons of plastic waste reach the aquatic environment annually. LÄS MER

  2. 2. Microplastics in the marine environment and the assessment of potential adverse effects of associated chemicals

    Detta är en avhandling från Örebro : Örebro University

    Författare :Christine Schönlau; Örebro universitet.; [2019]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Microplastics; reporter gene bioassays; sorption; HOCs; polyethylene; polypropylene; polystyrene;

    Sammanfattning : During the last decade plastics have gained interest by scientists as emerging pollutants particularly in the marine environment due to their ubiquity and persistence. While several studies report the occurrence of microplastics in surface waters globally, there are no harmonized methods to sample and measure microplastics, and the knowledge of toxicological effects in the marine ecosystem is scarce. LÄS MER

  3. 3. Sub-lethal Effects of Anthropogenic Contaminants on Aquatic Invertebrates

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Warren Kunce; Uppsala universitet.; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ecotoxicology; sub-lethal; behavior; biomarkers; thermal tolerance; pesticides; pyrethroids; neonicotinoids; pharmaceuticals; antihistamines; microplastics; mixtures; freshwater; invertebrates; chironomids; damselflies; snails; Biology with specialization in Animal Conservation; Biologi med inriktning mot zoologisk bevarandebiologi;

    Sammanfattning : Anthropogenic contaminants are considered to play a substantial role in the decline of freshwater invertebrate diversity. Sub-lethal effects of many of these contaminants on behaviour and life-history traits of aquatic invertebrates may contribute to their decline. LÄS MER

  4. 4. Sources and fate of plastic particles in northern European coastal waters

    Detta är en avhandling från Göteborgs universitet

    Författare :Therese Karlsson; Göteborgs universitet.; Gothenburg University.; [2019]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; plastic pollution; microplastics; method development; polyethylene; FTIR spectroscopy;

    Sammanfattning : Plastics are integral parts of our lives and have allowed for important technological leaps within society. However, an unwanted consequence of our current consumption of plas-tics is marine plastic pollution and in order to reduce its impact we need to understand its sources and fate patterns. LÄS MER

  5. 5. Polarization-Resolved Particle Holography

    Detta är en avhandling från Luleå University of Technology

    Författare :Johan Öhman; Mikael Sjödahl; Erik Olsson; Per Bergström; Pietro Ferraro; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimentell mekanik; Experimental Mechanics;

    Sammanfattning : In this thesis, measurement of particle fields using digital holography is the main subject. The questions investigated consider positioning, identification and sizing of nanometer and micrometer particles. The thesis explore these topics using both simulations and experimental measurements. LÄS MER