Sökning: "ecotoxicity"

Visar resultat 1 - 5 av 31 uppsatser innehållade ordet ecotoxicity.

  1. 1. Ecological risk assessment of pesticide use in rice farming in the Mekong Delta , Vietnam

    Magister-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Bubaraye Ohiosimuan Dirikumo; [2023]
    Nyckelord :Pesticides; Ecological Risk Assessment ERA ; rice farming; Mekong Delta; PRIMET Model; Exposure Toxicity Ratio ETR ; species sensitivity distribution SSD ; predicted environmental concentrations PECs ;

    Sammanfattning : Pesticide use in rice farming is a common practice in the Mekong Delta and poses ecological risks to aquatic organisms, the environment, and human health. This study focused on the ecological risk assessment of pesticide use in rice farming using the PRIMET model as a decision support tool to evaluate the risks of pesticide exposure, ecotoxicity, and risk characterization, as well as employing the species sensitivity distribution (SSD) assessment model to calculate the potentially affected fraction (PAF) of species based on the computed predicted environmental concentrations (PECs) from PRIMET. LÄS MER

  3. 2. The ecotoxicity effect of metronidazole on Raphidocelis subcapitata

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Asil Ajaj; [2022]
    Nyckelord :;

    Sammanfattning : Pseudokirchneriella subcapitata is a sickle-shaped freshwater green microalga that is normally found in unicellular form. It is the best known and most frequently used species of ecotoxicological bioindicator because of its high growth rate and sensitivity to toxicants. LÄS MER

  4. 3. Life Cycle Assessment of a small scale, solar driven HVR water purification system

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Sharang Kolathur; [2022]
    Nyckelord :life cycle assessment; air gap membrane distillation; solar energy; levelized cost; grid operated system; livscykelanalys; luftgapmembrandestillation; solenergi; utjämnade kostnader; nätdrivet system;

    Sammanfattning : Water purification systems have made access to drinking water easier by treating water sources which previously could not be used for drinking. Such systems however require energy and materials to build and operate which means they have environmental impacts. LÄS MER

  5. 4. Life Cycle Assessment of a 3D printer : A comparative and attributional life cycle assessment of 3D printer

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Rishi Akash Chinnakonda Senthil; [2022]
    Nyckelord :3D printer; LCA; impact categories;

    Sammanfattning : Three-dimensional (3D) bio printing offers a wide range of applications, including the placement, design, and patterning of biological components such as living cells, nucleic acids, tissues, and many more. Bioprinting has seen great growth and breakthroughs in recent years, particularly in 3D printing. LÄS MER

  7. 5. Burn or Return? Evaluating Deposit Return Systems for Plastic Packaging Waste in Sweden : A Comparative Life Cycle Assessment

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Martin Forsman Hedman; [2022]
    Nyckelord :Resource management; reuse; deposit return scheme; circular economy; polypropylene;

    Sammanfattning : Plastics have become an integral part of modern life and global use is expected to grow almost two- fold until 2040. 40% of European demand for plastic raw materials is driven by the packaging industry and being a cheap material, focus on waste management has historically been neglected. LÄS MER