Sökning: "environmental toxicity"

Visar resultat 1 - 5 av 138 uppsatser innehållade orden environmental toxicity.

  1. 1. TOXICITY DRIVERS IN CHEMICAL MIXTURES FROM THE SWEDISH WEST COAST – EFFECTS ON PELAGIC COMMUNITIES

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Helena Hartmann; [2023-06-26]
    Nyckelord :;

    Sammanfattning : Human society benefits from a range of ecosystem services provided by the oceans, such as oxygen production, carbon storage, and fishing. However, these services are relying on the ecosystem’s functional and structural integrity, which are correlated to its biodiversity. LÄS MER

  3. 2. ASSESSING MICROBIAL COMMUNITY RESPONSES IN A CHEMICALLY STRESSED FRESHWATER ECOSYSTEM USING ENVIRONMENTAL DNA

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Nicolai Laufer; [2023-06-21]
    Nyckelord :;

    Sammanfattning : Microbial communities represent the fundamental cornerstones of riverine ecosystems because they are involved in numerous processes which mediate ecosystem services. However, riverine ecosystems are currently massively altered by a variety of anthropogenic activities which includes changes in landuse and chemical pollution. LÄS MER

  4. 3. 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

  5. 4. Att bespruta eller inte bespruta?- En studie om växtskyddsmedels påverkan på pollinatörer i svenska jordgubbsodlingar

    Kandidat-uppsats, Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Elin Johansson; [2023]
    Nyckelord :pollinatörer; fungicider; herbicider; insekticider; jordgubbar; växtskyddsmedel; Earth and Environmental Sciences;

    Sammanfattning : This study investigated how pollinators are affected by plant protection products (PPP), what type of PPPs strawberry farmers used and what knowledge they had about these products. To investigate this, a literature review and a survey was conducted. The questionnaire was sent to 70 Swedish strawberry farmers of which 11% participated in the study. LÄS MER

  7. 5. Temporal trends of 4-Hydroxychlorothalonil in maternal serum samples, 1997-2015

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning; Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Elin Wällstedt; [2023]
    Nyckelord :Biomonitoring; human exposure effects; environmental exposure; fungicide; pregnancy; pregnant women; chlorothalonil; CHT; 4-hydroxy-chlorothalonil; 4-OH-CHT; Earth and Environmental Sciences;

    Sammanfattning : Agricultural fungicides are extensively used for infestation control, resulting in residues of these compounds in food. Human exposure to environmental contaminants might occur via different routes, such as inhalation, skin contact, or ingestion. Exposure to several pesticides has been associated with adverse human health outcomes. LÄS MER